蒙大拿州 지역 코드: 406
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Note：406 지역 번호는 다음과 같습니다 蒙大拿州, 미국. 국제 전화 번호는 001406 or 001-406、0010406、+1-406、+1+406、+1406、00-1-406、00 1 406.
More About Area Code 406
Area Code 406 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served the entire state of Montana. Currently, it covers the entire state of Montana, and it overlaps coverage areas with area code .
Active Phone Number Prefixes
| Prefix | Usage | Primary City | Carrier |
| (406) 200- | Landline | Billings | Teleport Communications America - Mt - LLC |
| (406) 201- | Wireless | Rosebud | New Cingular Wireless PCS |
| (406) 202- | Wireless | Helena | New Cingular Wireless PCS |
| (406) 203- | Landline | Missoula | Level 3 Communications |
| (406) 204- | Landline | Helena | Level 3 Communications |
| (406) 205- | Landline | Great Falls | Level 3 Communications |
| (406) 206- | Landline | Billings | Level 3 Communications |
| (406) 207- | Wireless | Missoula | New Cingular Wireless PCS |
| (406) 208- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 209- | Wireless | Bozeman | New Cingular Wireless PCS |
| (406) 210- | Wireless | Seeley Lake | Cellco Partnership DBA Verizon Wireless |
| (406) 212- | Wireless | Kalispell | New Cingular Wireless PCS |
| (406) 213- | Landline | Rosebud | Level 3 Communications |
| (406) 214- | Landline | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 215- | Landline | Missoula | Eltopia Communications |
| (406) 216- | Landline | Great Falls | 3 Rivers Telephone Cooperative |
| (406) 217- | Landline | Great Falls | AT&T Local |
| (406) 218- | Wireless | Missoula | Sprint Spectrum L.p.- Mt |
| (406) 219- | Landline | Bozeman | AT&T Local |
| (406) 220- | Wireless | Livingston | New Cingular Wireless PCS |
| (406) 221- | Landline | Butte | AT&T Local |
| (406) 222- | Landline | Livingston | Qwest Corporation |
| (406) 223- | Wireless | Livingston | Cellco Partnership DBA Verizon Wireless |
| (406) 224- | Wireless | Livingston | Cellco Partnership DBA Verizon Wireless |
| (406) 225- | Landline | Boulder | Qwest Corporation |
| (406) 226- | Landline | Essex | Qwest Corporation |
| (406) 227- | Landline | East Helena | Qwest Corporation |
| (406) 228- | Landline | Glasgow | Nemont Telephone Cooperative |
| (406) 229- | Wireless | Livingston | New Cingular Wireless PCS |
| (406) 230- | Wireless | Glasgow | Cellco Partnership DBA Verizon Wireless |
| (406) 231- | Wireless | Great Falls | New Cingular Wireless PCS |
| (406) 232- | Landline | Miles City | Qwest Corporation |
| (406) 233- | Landline | Miles City | Qwest Corporation |
| (406) 234- | Landline | Miles City | Mid-rivers Telephone Cooperative |
| (406) 235- | Landline | Wolf Creek | Qwest Corporation |
| (406) 236- | Landline | Neihart | 3 Rivers Telephone Cooperative |
| (406) 237- | Landline | Billings | Qwest Corporation |
| (406) 238- | Landline | Billings | Qwest Corporation |
| (406) 239- | Wireless | Missoula | New Cingular Wireless PCS |
| (406) 240- | Wireless | Missoula | New Cingular Wireless PCS |
| (406) 241- | Wireless | Missoula | New Cingular Wireless PCS |
| (406) 242- | Wireless | Thompson Falls | New Cingular Wireless PCS |
| (406) 243- | Landline | Missoula | Qwest Corporation |
| (406) 244- | Landline | Potomac | Blackfoot Telephone Cooperative |
| (406) 245- | Landline | Billings | Qwest Corporation |
| (406) 246- | Landline | Dixon | Blackfoot Telephone Cooperative |
| (406) 247- | Landline | Billings | Qwest Corporation |
| (406) 248- | Landline | Billings | Qwest Corporation |
| (406) 249- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 250- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 251- | Landline | Missoula | Qwest Corporation |
| (406) 252- | Landline | Billings | Qwest Corporation |
| (406) 253- | Wireless | Kalispell | New Cingular Wireless PCS |
| (406) 254- | Landline | Billings | Qwest Corporation |
| (406) 255- | Landline | Billings | Qwest Corporation |
| (406) 256- | Landline | Billings | Qwest Corporation |
| (406) 257- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 258- | Landline | Missoula | Qwest Corporation |
| (406) 259- | Landline | Billings | Qwest Corporation |
| (406) 260- | Wireless | Kalispell | New Cingular Wireless PCS |
| (406) 261- | Wireless | Kalispell | New Cingular Wireless PCS |
| (406) 262- | Landline | Havre | Qwest Corporation |
| (406) 263- | Landline | Glasgow | Sagebrush Cellular |
| (406) 264- | Landline | Fort Shaw | 3 Rivers Telephone Cooperative |
| (406) 265- | Landline | Havre | Qwest Corporation |
| (406) 266- | Landline | Townsend | Qwest Corporation |
| (406) 267- | Landline | Divide | Southern Montana Telephone Co. |
| (406) 268- | Landline | Great Falls | Qwest Corporation |
| (406) 269- | Wireless | St Regis | New Cingular Wireless PCS |
| (406) 270- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 271- | Landline | Conrad | 3 Rivers Telephone Cooperative |
| (406) 272- | Landline | Billings | Zayo Group LLC |
| (406) 273- | Landline | Lolo | Qwest Corporation |
| (406) 274- | Landline | Missoula | AT&T Local |
| (406) 275- | Landline | Ronan | Ronan Telephone Co. |
| (406) 276- | Landline | Lima | 3 Rivers Telephone Cooperative |
| (406) 277- | Landline | Belt | 3 Rivers Telephone Cooperative |
| (406) 278- | Landline | Conrad | Qwest Corporation |
| (406) 279- | Landline | Valier | 3 Rivers Telephone Cooperative |
| (406) 280- | Wireless | St Regis | New Cingular Wireless PCS |
| (406) 281- | Landline | Billings | AT&T Local |
| (406) 282- | Landline | Manhattan | Qwest Corporation |
| (406) 283- | Landline | Libby | Citizens Telecom Co Of Mt-frontier Comm Of Mt |
| (406) 284- | Landline | Manhattan | Qwest Corporation |
| (406) 285- | Landline | Three Forks | Qwest Corporation |
| (406) 286- | Landline | Medicine Lake | Nemont Telephone Cooperative |
| (406) 287- | Landline | Whitehall | Qwest Corporation |
| (406) 288- | Landline | Drummond | Blackfoot Telephone Cooperative |
| (406) 289- | Wireless | Conrad | New Cingular Wireless PCS |
| (406) 290- | Landline | Columbus | Zayo Group LLC |
| (406) 291- | Wireless | Libby | Cellco Partnership DBA Verizon Wireless |
| (406) 292- | Landline | Joplin | Triangle Telephone Cooperative Assn. |
| (406) 293- | Landline | Libby | Citizens Telecom Co Of Mt-frontier Comm Of Mt |
| (406) 294- | Landline | Billings | One Eighty Communications |
| (406) 295- | Landline | Troy | Citizens Telecom Co Of Mt-frontier Comm Of Mt |
| (406) 296- | Landline | Eureka | Citizens Telecom Co Of Mt-frontier Comm Of Mt |
| (406) 297- | Landline | Eureka | Interbel Telephone Cooperative |
| (406) 298- | Wireless | Columbus | Cellco Partnership DBA Verizon Wireless |
| (406) 299- | Landline | Butte | Level 3 Communications |
| (406) 300- | Landline | Kalispell | Bresnan Broadband Of Montana |
| (406) 301- | Wireless | Malta | Cellco Partnership DBA Verizon Wireless |
| (406) 302- | Landline | Wolf Creek | Zayo Group LLC |
| (406) 303- | Landline | Missoula | Teleport Communications America - Mt - LLC |
| (406) 305- | Wireless | White Sulphur Springs | New Cingular Wireless PCS |
| (406) 309- | Wireless | Kalispell | Bresnan Broadband Of Montana |
| (406) 310- | Wireless | Butte | Sprint Spectrum L.p.- Mt |
| (406) 312- | Landline | Bozeman | Smart Call |
| (406) 313- | Landline | Boulder | Zayo Group LLC |
| (406) 314- | Wireless | Kalispell | New Cingular Wireless PCS |
| (406) 315- | Landline | Great Falls | Bresnan Broadband Of Montana |
| (406) 317- | Landline | Missoula | Bresnan Broadband Of Montana |
| (406) 318- | Landline | Ronan | Ymax Communications Corp. |
| (406) 319- | Landline | Polson | Bresnan Broadband Of Montana |
| (406) 320- | Wireless | Roundup | Cellco Partnership DBA Verizon Wireless |
| (406) 321- | Wireless | Columbus | New Cingular Wireless PCS |
| (406) 322- | Landline | Columbus | Qwest Corporation |
| (406) 323- | Landline | Roundup | Mid-rivers Telephone Cooperative |
| (406) 324- | Landline | Helena | Qwest Corporation |
| (406) 325- | Landline | Billings | One Eighty Communications |
| (406) 326- | Landline | Reed Point | Triangle Telephone Cooperative Assn. |
| (406) 327- | Landline | Missoula | Qwest Corporation |
| (406) 328- | Landline | Absarokee | Project Telephone Co. |
| (406) 329- | Landline | Missoula | Qwest Corporation |
| (406) 330- | Landline | Clinton | Bresnan Broadband Of Montana |
| (406) 331- | Wireless | Roundup | Cellco Partnership DBA Verizon Wireless |
| (406) 332- | Landline | Ronan | Blackfoot Telephone Cooperative |
| (406) 333- | Landline | Livingston | Qwest Corporation |
| (406) 334- | Wireless | Libby | New Cingular Wireless PCS |
| (406) 335- | Landline | Sweet Grass | Northern Telephone Cooperative |
| (406) 336- | Landline | Cut Bank | Northern Telephone Cooperative |
| (406) 337- | Landline | Sunburst | Northern Telephone Cooperative |
| (406) 338- | Landline | Browning | 3 Rivers Telephone Cooperative |
| (406) 339- | Landline | Cut Bank | Northern Telephone Cooperative |
| (406) 340- | Wireless | Lima | Mtpcs |
| (406) 342- | Landline | Hysham | Range Telephone Cooperative |
| (406) 343- | Landline | Wyola | Project Telephone Co. |
| (406) 345- | Landline | Glendive | Mid-rivers Telephone Cooperative |
| (406) 346- | Landline | Forsyth | Range Telephone Cooperative |
| (406) 347- | Landline | Rosebud | Range Telephone Cooperative |
| (406) 348- | Landline | Huntley | Project Telephone Co. |
| (406) 349- | Landline | Conner | Blackfoot Telephone Cooperative |
| (406) 350- | Wireless | Lewistown | New Cingular Wireless PCS |
| (406) 351- | Wireless | Forsyth | Cellco Partnership DBA Verizon Wireless |
| (406) 352- | Landline | Box Elder | Triangle Telephone Cooperative Assn. |
| (406) 353- | Landline | Harlem | Central Montana Communications |
| (406) 354- | Landline | Angela | Mid-rivers Telephone Cooperative |
| (406) 355- | Landline | Rudyard | Triangle Telephone Cooperative Assn. |
| (406) 356- | Landline | Forsyth | Qwest Corporation |
| (406) 357- | Landline | Chinook | Triangle Telephone Cooperative Assn. |
| (406) 358- | Landline | Musselshell | Mid-rivers Telephone Cooperative |
| (406) 359- | Landline | Glendive | Qwest Corporation |
| (406) 360- | Wireless | Hamilton | Cellco Partnership DBA Verizon Wireless |
| (406) 361- | Wireless | Hamilton | Cellco Partnership DBA Verizon Wireless |
| (406) 362- | Landline | Lincoln | Lincoln Telephone Company |
| (406) 363- | Landline | Hamilton | Qwest Corporation |
| (406) 364- | Landline | Hinsdale | Nemont Telephone Cooperative |
| (406) 365- | Landline | Glendive | Qwest Corporation |
| (406) 366- | Wireless | Lewistown | Cellco Partnership DBA Verizon Wireless |
| (406) 367- | Landline | Glasgow | Nemont Telephone Cooperative |
| (406) 368- | Landline | Canyon Creek | Lincoln Telephone Company |
| (406) 369- | Wireless | Hamilton | New Cingular Wireless PCS |
| (406) 370- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 371- | Landline | Billings | Mcimetro Access Transmission Services LLC |
| (406) 372- | Landline | Kremlin | Triangle Telephone Cooperative Assn. |
| (406) 373- | Landline | Huntley | Qwest Corporation |
| (406) 374- | Landline | Moore | Central Montana Communications |
| (406) 375- | Landline | Hamilton | Qwest Corporation |
| (406) 376- | Landline | Gildford | Triangle Telephone Cooperative Assn. |
| (406) 377- | Landline | Glendive | Mid-rivers Telephone Cooperative |
| (406) 378- | Landline | Big Sandy | Triangle Telephone Cooperative Assn. |
| (406) 379- | Landline | Turner | Triangle Telephone Cooperative Assn. |
| (406) 380- | Wireless | Lewistown | Cellco Partnership DBA Verizon Wireless |
| (406) 381- | Wireless | Hamilton | Cellco Partnership DBA Verizon Wireless |
| (406) 382- | Wireless | Superior | New Cingular Wireless PCS |
| (406) 383- | Landline | Dodson | Central Montana Communications |
| (406) 384- | Landline | Billings | One Eighty Communications |
| (406) 385- | Landline | Westby | Nemont Telephone Cooperative |
| (406) 386- | Landline | Big Sandy | Triangle Telephone Cooperative Assn. |
| (406) 387- | Landline | Columbia Falls | Centurytel Of Montana DBA Centurylink |
| (406) 388- | Landline | Belgrade | Qwest Corporation |
| (406) 389- | Landline | Helena | Centurylink Communications LLC |
| (406) 390- | Wireless | Havre | Cellco Partnership DBA Verizon Wireless |
| (406) 391- | Wireless | Cut Bank | Mtpcs |
| (406) 392- | Landline | Frazer | Nemont Telephone Cooperative |
| (406) 393- | Landline | Somers | Bresnan Broadband Of Montana |
| (406) 394- | Landline | Havre | Triangle Telephone Cooperative Assn. |
| (406) 395- | Landline | Havre | Triangle Telephone Cooperative Assn. |
| (406) 396- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 397- | Landline | Hingham | Triangle Telephone Cooperative Assn. |
| (406) 398- | Landline | Havre | Triangle Telephone Cooperative Assn. |
| (406) 399- | Wireless | Havre | Cellco Partnership DBA Verizon Wireless |
| (406) 400- | Unknown | Montana Sky West LLC | |
| (406) 403- | Landline | Great Falls | Zayo Group LLC |
| (406) 404- | Landline | Bozeman | Bresnan Broadband Of Montana |
| (406) 407- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 410- | Wireless | Helena | Sprint Spectrum L.p.- Mt |
| (406) 414- | Landline | Bozeman | Qwest Corporation |
| (406) 415- | Landline | Deer Lodge | Bresnan Broadband Of Montana |
| (406) 417- | Wireless | Helena | New Cingular Wireless PCS |
| (406) 420- | Landline | Bigfork | Bresnan Broadband Of Montana |
| (406) 421- | Landline | Miles City | Range Telephone Cooperative |
| (406) 422- | Landline | Helena | Bresnan Broadband Of Montana |
| (406) 423- | Landline | Hobson | Central Montana Communications |
| (406) 424- | Landline | Great Falls | 3 Rivers Telephone Cooperative |
| (406) 425- | Wireless | Red Lodge | Cellco Partnership DBA Verizon Wireless |
| (406) 426- | Wireless | Red Lodge | Cellco Partnership DBA Verizon Wireless |
| (406) 427- | Landline | Broadus | Range Telephone Cooperative |
| (406) 428- | Landline | Grass Range | Mid-rivers Telephone Cooperative |
| (406) 429- | Landline | Winnett | Mid-rivers Telephone Cooperative |
| (406) 430- | Landline | Helena | Zayo Group LLC |
| (406) 431- | Wireless | Helena | Cellco Partnership DBA Verizon Wireless |
| (406) 432- | Landline | Galata | Northern Telephone Cooperative |
| (406) 433- | Landline | Sidney | Mid-rivers Telephone Cooperative |
| (406) 434- | Landline | Shelby | Qwest Corporation |
| (406) 435- | Landline | Billings | One Eighty Communications |
| (406) 436- | Landline | Broadus | Range Telephone Cooperative |
| (406) 437- | Landline | Helena | Mcimetro Access Transmission Services LLC |
| (406) 438- | Wireless | Helena | Cellco Partnership DBA Verizon Wireless |
| (406) 439- | Wireless | Helena | New Cingular Wireless PCS |
| (406) 440- | Landline | Helena | 3 Rivers Telephone Cooperative |
| (406) 441- | Landline | Helena | Qwest Corporation |
| (406) 442- | Landline | Helena | Qwest Corporation |
| (406) 443- | Landline | Helena | Qwest Corporation |
| (406) 444- | Landline | Helena | Qwest Corporation |
| (406) 445- | Landline | Roberts | Qwest Corporation |
| (406) 446- | Landline | Red Lodge | Qwest Corporation |
| (406) 447- | Landline | Helena | Qwest Corporation |
| (406) 448- | Landline | Brockton | Nemont Telephone Cooperative |
| (406) 449- | Landline | Helena | Qwest Corporation |
| (406) 450- | Wireless | Shelby | Cellco Partnership DBA Verizon Wireless |
| (406) 451- | Wireless | Bozeman | Sprint Spectrum L.p.- Mt |
| (406) 452- | Landline | Great Falls | Qwest Corporation |
| (406) 453- | Landline | Great Falls | Qwest Corporation |
| (406) 454- | Landline | Great Falls | Qwest Corporation |
| (406) 455- | Landline | Great Falls | Qwest Corporation |
| (406) 456- | Landline | Chester | Triangle Telephone Cooperative Assn. |
| (406) 457- | Landline | Helena | Qwest Corporation |
| (406) 458- | Landline | Helena | Qwest Corporation |
| (406) 459- | Wireless | Helena | Cellco Partnership DBA Verizon Wireless |
| (406) 460- | Wireless | Shelby | New Cingular Wireless PCS |
| (406) 461- | Wireless | Helena | Cellco Partnership DBA Verizon Wireless |
| (406) 462- | Landline | Winifred | Triangle Telephone Cooperative Assn. |
| (406) 463- | Landline | Power | 3 Rivers Telephone Cooperative |
| (406) 464- | Landline | Roy | Mid-rivers Telephone Cooperative |
| (406) 465- | Wireless | Helena | Cellco Partnership DBA Verizon Wireless |
| (406) 466- | Landline | Choteau | 3 Rivers Telephone Cooperative |
| (406) 467- | Landline | Fairfield | 3 Rivers Telephone Cooperative |
| (406) 468- | Landline | Cascade | Qwest Corporation |
| (406) 469- | Landline | Pendroy | 3 Rivers Telephone Cooperative |
| (406) 470- | Wireless | Shelby | Cellco Partnership DBA Verizon Wireless |
| (406) 471- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 472- | Landline | Pendroy | 3 Rivers Telephone Cooperative |
| (406) 473- | Landline | Judith Gap | Central Montana Communications |
| (406) 474- | Landline | Whitetail | Nemont Telephone Cooperative |
| (406) 475- | Landline | East Helena | Qwest Corporation |
| (406) 476- | Landline | Dutton | Qwest Corporation |
| (406) 477- | Landline | Ashland | Range Telephone Cooperative |
| (406) 478- | Wireless | Sidney | Cellco Partnership DBA Verizon Wireless |
| (406) 479- | Wireless | Butte | Cellco Partnership DBA Verizon Wireless |
| (406) 480- | Wireless | Sidney | Cellco Partnership DBA Verizon Wireless |
| (406) 482- | Landline | Sidney | Qwest Corporation |
| (406) 483- | Landline | Dagmar | Nemont Telephone Cooperative |
| (406) 484- | Landline | Belfry | Tct West |
| (406) 485- | Landline | Circle | Mid-rivers Telephone Cooperative |
| (406) 486- | Landline | Fallon | Mid-rivers Telephone Cooperative |
| (406) 487- | Landline | Scobey | Nemont Telephone Cooperative |
| (406) 488- | Landline | Sidney | Mid-rivers Telephone Cooperative |
| (406) 489- | Wireless | Sidney | New Cingular Wireless PCS |
| (406) 490- | Wireless | Butte | Cellco Partnership DBA Verizon Wireless |
| (406) 491- | Wireless | Butte | New Cingular Wireless PCS |
| (406) 492- | Landline | Garrison | Blackfoot Telephone Cooperative |
| (406) 493- | Landline | Missoula | Bresnan Broadband Of Montana |
| (406) 494- | Landline | Butte | Qwest Corporation |
| (406) 495- | Landline | Helena | Qwest Corporation |
| (406) 496- | Landline | Butte | Qwest Corporation |
| (406) 497- | Landline | Butte | Qwest Corporation |
| (406) 498- | Wireless | Butte | Cellco Partnership DBA Verizon Wireless |
| (406) 499- | Wireless | Seeley Lake | New Cingular Wireless PCS |
| (406) 502- | Landline | Helena | Bresnan Broadband Of Montana |
| (406) 505- | Wireless | Conrad | New Cingular Wireless PCS |
| (406) 508- | Landline | Frenchtown | Level 3 Communications |
| (406) 513- | Landline | Helena | Bresnan Broadband Of Montana |
| (406) 514- | Wireless | Culbertson | New Cingular Wireless PCS |
| (406) 515- | Wireless | Superior | New Cingular Wireless PCS |
| (406) 518- | Landline | Bozeman | Zayo Group LLC |
| (406) 520- | Wireless | Absarokee | Mtpcs |
| (406) 521- | Wireless | Townsend | Cellco Partnership DBA Verizon Wireless |
| (406) 522- | Landline | Bozeman | Qwest Corporation |
| (406) 523- | Landline | Missoula | Qwest Corporation |
| (406) 524- | Landline | Nashua | Nemont Telephone Cooperative |
| (406) 525- | Landline | Wolf Point | Mid-rivers Telephone Cooperative |
| (406) 526- | Landline | Fort Peck | Nemont Telephone Cooperative |
| (406) 527- | Landline | Saco | Nemont Telephone Cooperative |
| (406) 528- | Landline | Ronan | Ronan Telephone Co. |
| (406) 529- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 530- | Landline | Laurel | Level 3 Communications |
| (406) 531- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 532- | Landline | Missoula | Blackfoot Communications |
| (406) 533- | Landline | Butte | Qwest Corporation |
| (406) 534- | Landline | Billings | Bresnan Broadband Of Montana |
| (406) 535- | Landline | Lewistown | Mid-rivers Telephone Cooperative |
| (406) 537- | Landline | Melville | Triangle Telephone Cooperative Assn. |
| (406) 538- | Landline | Lewistown | Qwest Corporation |
| (406) 539- | Wireless | Bozeman | New Cingular Wireless PCS |
| (406) 540- | Landline | Missoula | Zayo Group LLC |
| (406) 541- | Landline | Missoula | Blackfoot Communications |
| (406) 542- | Landline | Missoula | Qwest Corporation |
| (406) 543- | Landline | Missoula | Qwest Corporation |
| (406) 544- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 545- | Landline | Billings | Level 3 Communications |
| (406) 546- | Wireless | Missoula | Cellco Partnership DBA Verizon Wireless |
| (406) 547- | Landline | White Sulphur Springs | Central Montana Communications |
| (406) 548- | Landline | Bozeman | Qwest Corporation |
| (406) 549- | Landline | Missoula | Qwest Corporation |
| (406) 550- | Wireless | Missoula | Sprint Spectrum L.p.- Mt |
| (406) 551- | Landline | Bozeman | Level 3 Communications |
| (406) 552- | Landline | Missoula | Level 3 Communications |
| (406) 553- | Wireless | Divide | Mtpcs |
| (406) 554- | Landline | Olive | Range Telephone Cooperative |
| (406) 556- | Landline | Bozeman | Qwest Corporation |
| (406) 557- | Landline | Jordan | Mid-rivers Telephone Cooperative |
| (406) 558- | Landline | Helena | Level 3 Communications |
| (406) 559- | Wireless | Anaconda | Cellco Partnership DBA Verizon Wireless |
| (406) 560- | Wireless | Anaconda | Cellco Partnership DBA Verizon Wireless |
| (406) 561- | Wireless | Sunburst | Mtpcs |
| (406) 562- | Landline | Fairfield | 3 Rivers Telephone Cooperative |
| (406) 563- | Landline | Anaconda | Qwest Corporation |
| (406) 564- | Landline | Great Falls | Level 3 Communications |
| (406) 565- | Landline | Butte | Level 3 Communications |
| (406) 566- | Landline | Stanford | Central Montana Communications |
| (406) 567- | Landline | Denton | Central Montana Communications |
| (406) 568- | Landline | Ryegate | Mid-rivers Telephone Cooperative |
| (406) 569- | Landline | Sidney | Reservation Telephone Cooperative |
| (406) 570- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 571- | Landline | Polson | Bresnan Broadband Of Montana |
| (406) 572- | Landline | Martinsdale | Central Montana Communications |
| (406) 573- | Wireless | Browning | Mtpcs |
| (406) 574- | Landline | Belfry | Qwest Corporation |
| (406) 575- | Landline | Lavina | Mid-rivers Telephone Cooperative |
| (406) 576- | Wireless | Conrad | Mtpcs |
| (406) 577- | Landline | Bozeman | Onvoy |
| (406) 578- | Landline | Wilsall | Qwest Corporation |
| (406) 579- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 580- | Wireless | Bozeman | New Cingular Wireless PCS |
| (406) 581- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 582- | Landline | Bozeman | Qwest Corporation |
| (406) 583- | Landline | Bloomfield | Mid-rivers Telephone Cooperative |
| (406) 584- | Landline | Lindsay | Mid-rivers Telephone Cooperative |
| (406) 585- | Landline | Bozeman | Qwest Corporation |
| (406) 586- | Landline | Bozeman | Qwest Corporation |
| (406) 587- | Landline | Bozeman | Qwest Corporation |
| (406) 588- | Landline | Plevna | Mid-rivers Telephone Cooperative |
| (406) 589- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 590- | Wireless | Great Falls | Mtpcs |
| (406) 591- | Wireless | Billings | Mtpcs |
| (406) 592- | Landline | Busby | Range Telephone Cooperative |
| (406) 593- | Wireless | Butte | Mtpcs |
| (406) 594- | Wireless | Helena | Mtpcs |
| (406) 595- | Wireless | Bozeman | Mtpcs |
| (406) 596- | Wireless | Dillon | Mtpcs |
| (406) 597- | Wireless | Shelby | Mtpcs |
| (406) 598- | Wireless | Billings | Mtpcs |
| (406) 599- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 600- | Wireless | Bozeman | Cellco Partnership DBA Verizon Wireless |
| (406) 601- | Landline | Billings | Blackfoot Communications |
| (406) 602- | Landline | Bozeman | Blackfoot Communications |
| (406) 603- | Landline | Helena | Blackfoot Communications |
| (406) 604- | Landline | Great Falls | Blackfoot Communications |
| (406) 606- | Landline | Billings | Tri Tel |
| (406) 607- | Landline | Kalispell | Blackfoot Communications |
| (406) 612- | Landline | Bigfork | Zayo Group LLC |
| (406) 615- | Wireless | Thompson Falls | Western Montana Communitytel Inc. |
| (406) 616- | Landline | Three Forks | Zayo Group LLC |
| (406) 620- | Wireless | Billings | Sagebrush Cellular |
| (406) 621- | Wireless | Loma | Mtpcs |
| (406) 622- | Landline | Fort Benton | Central Montana Communications |
| (406) 623- | Landline | Hardin | Level 3 Communications |
| (406) 624- | Landline | Bozeman | Montana Opticom |
| (406) 625- | Landline | Stevensville | Bresnan Broadband Of Montana |
| (406) 626- | Landline | Frenchtown | Qwest Corporation |
| (406) 627- | Landline | Brady | 3 Rivers Telephone Cooperative |
| (406) 628- | Landline | Laurel | Qwest Corporation |
| (406) 629- | Wireless | Hardin | Cellco Partnership DBA Verizon Wireless |
| (406) 630- | Landline | Sidney | Level 3 Communications |
| (406) 631- | Landline | Elmo | Zayo Group LLC |
| (406) 632- | Landline | Two Dot | Central Montana Communications |
| (406) 633- | Landline | Park City | Qwest Corporation |
| (406) 634- | Landline | Helena | AT&T Local |
| (406) 635- | Landline | Fallon | Mid-rivers Telephone Cooperative |
| (406) 636- | Landline | Lavina | Mid-rivers Telephone Cooperative |
| (406) 637- | Landline | Fallon | Qwest Corporation |
| (406) 638- | Landline | Crow Agency | Project Telephone Co. |
| (406) 639- | Landline | Lodge Grass | Project Telephone Co. |
| (406) 640- | Wireless | West Yellowstone | Cellco Partnership DBA Verizon Wireless |
| (406) 641- | Wireless | West Yellowstone | Cellco Partnership DBA Verizon Wireless |
| (406) 642- | Landline | Victor | Qwest Corporation |
| (406) 643- | Landline | Wyola | Zayo Group LLC |
| (406) 644- | Landline | Charlo | Blackfoot Telephone Cooperative |
| (406) 645- | Wireless | Deer Lodge | Mtpcs |
| (406) 646- | Landline | West Yellowstone | Qwest Corporation |
| (406) 647- | Landline | Billings | Bandwidth.com Clec |
| (406) 648- | Landline | Hinsdale | Nemont Telephone Cooperative |
| (406) 649- | Landline | St Regis | Blackfoot Telephone Cooperative |
| (406) 650- | Landline | Wolf Point | Sagebrush Cellular |
| (406) 651- | Landline | Billings | Qwest Corporation |
| (406) 652- | Landline | Billings | Qwest Corporation |
| (406) 653- | Landline | Wolf Point | Nemont Telephone Cooperative |
| (406) 654- | Landline | Malta | Central Montana Communications |
| (406) 655- | Landline | Billings | Qwest Corporation |
| (406) 656- | Landline | Billings | Qwest Corporation |
| (406) 657- | Landline | Billings | Qwest Corporation |
| (406) 658- | Landline | Malta | Triangle Telephone Cooperative Assn. |
| (406) 659- | Landline | Wyola | Qwest Corporation |
| (406) 660- | Wireless | Dillon | New Cingular Wireless PCS |
| (406) 661- | Wireless | Billings | Sprint Spectrum L.p.- Mt |
| (406) 662- | Landline | Bridger | Qwest Corporation |
| (406) 663- | Landline | Rapelje | Triangle Telephone Cooperative Assn. |
| (406) 664- | Landline | Belfry | Project Telephone Co. |
| (406) 665- | Landline | Hardin | Qwest Corporation |
| (406) 666- | Landline | Saint Xavier | Project Telephone Co. |
| (406) 667- | Landline | Broadview | Triangle Telephone Cooperative Assn. |
| (406) 668- | Landline | Fromberg | Qwest Corporation |
| (406) 669- | Landline | Molt | Triangle Telephone Cooperative Assn. |
| (406) 670- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 671- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 672- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 673- | Landline | Zortman | Triangle Telephone Cooperative Assn. |
| (406) 674- | Landline | Whitewater | Triangle Telephone Cooperative Assn. |
| (406) 675- | Landline | Ronan | Ronan Telephone Co. |
| (406) 676- | Landline | Ronan | Ronan Telephone Co. |
| (406) 677- | Landline | Seeley Lake | Blackfoot Telephone Cooperative |
| (406) 678- | Landline | Saint Regis | Blackfoot Telephone Cooperative |
| (406) 679- | Wireless | Hardin | Cellco Partnership DBA Verizon Wireless |
| (406) 680- | Wireless | Malta | Sagebrush Cellular |
| (406) 681- | Landline | Polaris | Southern Montana Telephone Co. |
| (406) 682- | Landline | Ennis | 3 Rivers Telephone Cooperative |
| (406) 683- | Landline | Dillon | Qwest Corporation |
| (406) 684- | Landline | Twin Bridges | 3 Rivers Telephone Cooperative |
| (406) 685- | Landline | Norris | 3 Rivers Telephone Cooperative |
| (406) 686- | Landline | Clyde Park | Qwest Corporation |
| (406) 687- | Landline | Glendive | Mid-rivers Telephone Cooperative |
| (406) 688- | Wireless | Scobey | Sagebrush Cellular |
| (406) 689- | Landline | Wisdom | Southern Montana Telephone Co. |
| (406) 690- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 691- | Wireless | Anaconda | New Cingular Wireless PCS |
| (406) 692- | Landline | Rollins | Zayo Group LLC |
| (406) 693- | Landline | Anaconda | Qwest Corporation |
| (406) 694- | Landline | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 695- | Landline | Wolf Point | Nemont Telephone Cooperative |
| (406) 696- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 697- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 698- | Wireless | Billings | Cellco Partnership DBA Verizon Wireless |
| (406) 699- | Wireless | Hardin | Mtpcs |
| (406) 702- | Landline | Billings | Bresnan Broadband Of Montana |
| (406) 707- | Wireless | Lewistown | Mtpcs |
| (406) 708- | Landline | Lewistown | Level 3 Communications |
| (406) 709- | Landline | Lakeside | Bresnan Broadband Of Montana |
| (406) 720- | Wireless | Ashland | Cellco Partnership DBA Verizon Wireless |
| (406) 721- | Landline | Missoula | Qwest Corporation |
| (406) 722- | Landline | Alberton | Blackfoot Telephone Cooperative |
| (406) 723- | Landline | Butte | Qwest Corporation |
| (406) 724- | Landline | Opheim | Nemont Telephone Cooperative |
| (406) 725- | Landline | Larslan | Nemont Telephone Cooperative |
| (406) 726- | Landline | Arlee | Blackfoot Telephone Cooperative |
| (406) 727- | Landline | Great Falls | Qwest Corporation |
| (406) 728- | Landline | Missoula | Qwest Corporation |
| (406) 729- | Wireless | Hathaway | Mtpcs |
| (406) 730- | Landline | Whitefish | Bresnan Broadband Of Montana |
| (406) 731- | Landline | Great Falls | Qwest Corporation |
| (406) 732- | Landline | Saint Mary | Qwest Corporation |
| (406) 733- | Landline | Highwood | 3 Rivers Telephone Cooperative |
| (406) 734- | Landline | Carter | 3 Rivers Telephone Cooperative |
| (406) 735- | Landline | Geyser | 3 Rivers Telephone Cooperative |
| (406) 736- | Landline | Sand Coulee | 3 Rivers Telephone Cooperative |
| (406) 737- | Landline | Geraldine | Central Montana Communications |
| (406) 738- | Landline | Raynesford | 3 Rivers Telephone Cooperative |
| (406) 739- | Landline | Loma | Triangle Telephone Cooperative Assn. |
| (406) 740- | Wireless | Ashland | Cellco Partnership DBA Verizon Wireless |
| (406) 741- | Landline | Hot Springs | Hot Springs Telephone Co. |
| (406) 742- | Landline | Sidney | Mid-rivers Telephone Cooperative |
| (406) 743- | Wireless | Laurel | New Cingular Wireless PCS |
| (406) 744- | Landline | Charlo | Western Montana Communitytel Inc. |
| (406) 745- | Landline | Saint Ignatius | Blackfoot Telephone Cooperative |
| (406) 746- | Landline | Nashua | Nemont Telephone Cooperative |
| (406) 747- | Landline | Sidney | Qwest Corporation |
| (406) 748- | Landline | Ashland | Qwest Corporation |
| (406) 749- | Wireless | Ashland | New Cingular Wireless PCS |
| (406) 750- | Wireless | Great Falls | Cellco Partnership DBA Verizon Wireless |
| (406) 751- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 752- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 753- | Landline | Brady | 3 Rivers Telephone Cooperative |
| (406) 754- | Landline | Condon | Blackfoot Telephone Cooperative |
| (406) 755- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 756- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 757- | Landline | Decker | Range Telephone Cooperative |
| (406) 758- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 759- | Landline | Chester | Triangle Telephone Cooperative Assn. |
| (406) 760- | Landline | Great Falls | Zayo Group LLC |
| (406) 761- | Landline | Great Falls | Qwest Corporation |
| (406) 762- | Landline | Opheim | Nemont Telephone Cooperative |
| (406) 763- | Landline | Gallatin Gateway | Qwest Corporation |
| (406) 764- | Landline | Belfry | Tct West |
| (406) 765- | Landline | Plentywood | Nemont Telephone Cooperative |
| (406) 766- | Landline | Froid | Nemont Telephone Cooperative |
| (406) 767- | Landline | Alzada | Rt Communications |
| (406) 768- | Landline | Poplar | Nemont Telephone Cooperative |
| (406) 769- | Landline | Bainville | Nemont Telephone Cooperative |
| (406) 770- | Wireless | Great Falls | New Cingular Wireless PCS |
| (406) 771- | Landline | Great Falls | Qwest Corporation |
| (406) 772- | Landline | Plevna | Mid-rivers Telephone Cooperative |
| (406) 773- | Landline | Richey | Mid-rivers Telephone Cooperative |
| (406) 774- | Landline | Lambert | Mid-rivers Telephone Cooperative |
| (406) 775- | Landline | Ekalaka | Mid-rivers Telephone Cooperative |
| (406) 776- | Landline | Savage | Mid-rivers Telephone Cooperative |
| (406) 777- | Landline | Stevensville | Qwest Corporation |
| (406) 778- | Landline | Baker | Mid-rivers Telephone Cooperative |
| (406) 779- | Landline | Flaxville | Nemont Telephone Cooperative |
| (406) 780- | Wireless | Columbus | Cellco Partnership DBA Verizon Wireless |
| (406) 781- | Wireless | Great Falls | Cellco Partnership DBA Verizon Wireless |
| (406) 782- | Landline | Butte | Qwest Corporation |
| (406) 783- | Landline | Scobey | Nemont Telephone Cooperative |
| (406) 784- | Landline | Ashland | Range Telephone Cooperative |
| (406) 785- | Landline | Nashua | Nemont Telephone Cooperative |
| (406) 786- | Landline | Brockton | Nemont Telephone Cooperative |
| (406) 787- | Landline | Culbertson | Nemont Telephone Cooperative |
| (406) 788- | Wireless | Great Falls | Cellco Partnership DBA Verizon Wireless |
| (406) 789- | Landline | Medicine Lake | Nemont Telephone Cooperative |
| (406) 790- | Wireless | Culbertson | New Cingular Wireless PCS |
| (406) 791- | Landline | Great Falls | Qwest Corporation |
| (406) 792- | Landline | Butte | Onvoy |
| (406) 793- | Landline | Ovando | Blackfoot Telephone Cooperative |
| (406) 794- | Landline | Billings | Zayo Group LLC |
| (406) 795- | Landline | Wibaux | Qwest Corporation |
| (406) 796- | Landline | Wibaux | Mid-rivers Telephone Cooperative |
| (406) 797- | Landline | Anaconda | Qwest Corporation |
| (406) 798- | Landline | Sidney | Mid-rivers Telephone Cooperative |
| (406) 799- | Wireless | Great Falls | New Cingular Wireless PCS |
| (406) 800- | Landline | Bridger | Zayo Group LLC |
| (406) 802- | Landline | Hamilton | Bearcreek Networks |
| (406) 808- | Wireless | Havre | Mtpcs |
| (406) 812- | Landline | Laurel | Zayo Group LLC |
| (406) 813- | Landline | Belgrade | Mcimetro Access Transmission Services LLC |
| (406) 818- | Wireless | Red Lodge | Mtpcs |
| (406) 820- | Landline | Whitefish | Zayo Group LLC |
| (406) 821- | Landline | Darby | Qwest Corporation |
| (406) 822- | Landline | Superior | Blackfoot Telephone Cooperative |
| (406) 823- | Landline | Livingston | Qwest Corporation |
| (406) 824- | Wireless | Saint Ignatius | Mtpcs |
| (406) 825- | Landline | Clinton | Blackfoot Telephone Cooperative |
| (406) 826- | Landline | Plains | Blackfoot Telephone Cooperative |
| (406) 827- | Landline | Thompson Falls | Blackfoot Telephone Cooperative |
| (406) 828- | Landline | Alzada | Range Telephone Cooperative |
| (406) 829- | Landline | Missoula | Qwest Corporation |
| (406) 830- | Landline | Missoula | Bresnan Broadband Of Montana |
| (406) 831- | Wireless | Glasgow | Mtpcs |
| (406) 832- | Landline | Wise River | Southern Montana Telephone Co. |
| (406) 833- | Wireless | Ronan | Mtpcs |
| (406) 834- | Landline | Jackson | Southern Montana Telephone Co. |
| (406) 835- | Landline | Divide | 3 Rivers Telephone Cooperative |
| (406) 836- | Wireless | Great Falls | Sprint Spectrum L.p.- Mt |
| (406) 837- | Landline | Bigfork | Centurytel Of Montana DBA Centurylink |
| (406) 838- | Landline | Cooke City | Qwest Corporation |
| (406) 839- | Landline | Billings | Bresnan Broadband Of Montana |
| (406) 840- | Landline | Belfry | Zayo Group LLC |
| (406) 841- | Landline | Helena | Qwest Corporation |
| (406) 842- | Landline | Sheridan | 3 Rivers Telephone Cooperative |
| (406) 843- | Landline | Virginia City | 3 Rivers Telephone Cooperative |
| (406) 844- | Landline | Lakeside | Centurytel Of Montana DBA Centurylink |
| (406) 845- | Landline | Cut Bank | Bresnan Broadband Of Montana |
| (406) 846- | Landline | Deer Lodge | Qwest Corporation |
| (406) 847- | Landline | Noxon | Blackfoot Telephone Cooperative |
| (406) 848- | Landline | Emigrant | Qwest Corporation |
| (406) 849- | Landline | Elmo | Centurytel Of Montana DBA Centurylink |
| (406) 850- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 851- | Wireless | Miles City | Mtpcs |
| (406) 852- | Wireless | Miles City | Cellco Partnership DBA Verizon Wireless |
| (406) 853- | Wireless | Miles City | Cellco Partnership DBA Verizon Wireless |
| (406) 854- | Landline | Marion | Centurytel Of Montana DBA Centurylink |
| (406) 855- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 856- | Landline | Bighorn | Mid-rivers Telephone Cooperative |
| (406) 857- | Landline | Somers | Centurytel Of Montana DBA Centurylink |
| (406) 858- | Landline | Kalispell | Centurytel Of Montana DBA Centurylink |
| (406) 859- | Landline | Philipsburg | Blackfoot Telephone Cooperative |
| (406) 860- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 861- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 862- | Landline | Whitefish | Centurytel Of Montana DBA Centurylink |
| (406) 863- | Landline | Whitefish | Centurytel Of Montana DBA Centurylink |
| (406) 864- | Landline | Alberton | Blackfoot Telephone Cooperative |
| (406) 865- | Wireless | Dillon | Cellco Partnership DBA Verizon Wireless |
| (406) 866- | Landline | Great Falls | Qwest Corporation |
| (406) 867- | Landline | Billings | One Eighty Communications |
| (406) 868- | Wireless | Great Falls | Cellco Partnership DBA Verizon Wireless |
| (406) 869- | Landline | Billings | One Eighty Communications |
| (406) 870- | Wireless | Great Falls | Sprint Spectrum L.p.- Mt |
| (406) 871- | Wireless | Kalispell | Cellco Partnership DBA Verizon Wireless |
| (406) 872- | Landline | Polson | Western Montana Communitytel Inc. |
| (406) 873- | Landline | Cut Bank | Qwest Corporation |
| (406) 874- | Landline | Miles City | Mid-rivers Telephone Cooperative |
| (406) 875- | Landline | Worden | Project Telephone Co. |
| (406) 876- | Landline | Billings | Eltopia Communications |
| (406) 877- | Landline | Wibaux | Midstate Communications |
| (406) 878- | Wireless | Great Falls | 365 Wireless |
| (406) 879- | Wireless | Havre | New Cingular Wireless PCS |
| (406) 880- | Wireless | Missoula | Mtpcs |
| (406) 881- | Landline | Whitefish | Centurytel Of Montana DBA Centurylink |
| (406) 882- | Landline | Eureka | Interbel Telephone Cooperative |
| (406) 883- | Landline | Polson | Centurytel Of Montana DBA Centurylink |
| (406) 884- | Landline | Polson | Centurytel Of Montana DBA Centurylink |
| (406) 885- | Wireless | Kalispell | Mtpcs |
| (406) 886- | Landline | Bigfork | Centurytel Of Montana DBA Centurylink |
| (406) 887- | Landline | Polson | Centurytel Of Montana DBA Centurylink |
| (406) 888- | Landline | Columbia Falls | Qwest Corporation |
| (406) 889- | Landline | Eureka | Interbel Telephone Cooperative |
| (406) 890- | Landline | Kalispell | Bresnan Broadband Of Montana |
| (406) 891- | Wireless | Baker | New Cingular Wireless PCS |
| (406) 892- | Landline | Columbia Falls | Centurytel Of Montana DBA Centurylink |
| (406) 893- | Landline | Peerless | Nemont Telephone Cooperative |
| (406) 894- | Landline | Billings | Mid-rivers Telephone Cooperative |
| (406) 895- | Landline | Outlook | Nemont Telephone Cooperative |
| (406) 896- | Landline | Billings | Qwest Corporation |
| (406) 897- | Landline | Columbia Falls | Bresnan Broadband Of Montana |
| (406) 898- | Landline | Bozeman | Bresnan Broadband Of Montana |
| (406) 899- | Wireless | Great Falls | New Cingular Wireless PCS |
| (406) 905- | Landline | Joliet | Zayo Group LLC |
| (406) 913- | Wireless | Roundup | Cable &Communications Corporation |
| (406) 914- | Wireless | Lambert | Cable &Communications Corporation |
| (406) 915- | Wireless | Wolf Point | Cable &Communications Corporation |
| (406) 916- | Wireless | Bozeman | Nexus Communications |
| (406) 920- | Wireless | Bozeman | Sprint Spectrum L.p.- Mt |
| (406) 922- | Landline | Bozeman | One Eighty Communications |
| (406) 923- | Landline | Great Falls | Level 3 Communications |
| (406) 924- | Landline | Belgrade | Level 3 Communications |
| (406) 925- | Wireless | Dillon | Cellco Partnership DBA Verizon Wireless |
| (406) 926- | Landline | Missoula | Bresnan Broadband Of Montana |
| (406) 927- | Wireless | Billings | New Cingular Wireless PCS |
| (406) 928- | Wireless | Grass Range | Cable &Communications Corporation |
| (406) 929- | Landline | Columbia Falls | Zayo Group LLC |
| (406) 930- | Wireless | Big Timber | Cellco Partnership DBA Verizon Wireless |
| (406) 931- | Wireless | Big Timber | Cellco Partnership DBA Verizon Wireless |
| (406) 932- | Landline | Big Timber | Triangle Telephone Cooperative Assn. |
| (406) 933- | Landline | Clancy | Qwest Corporation |
| (406) 934- | Wireless | Miles City | Cable &Communications Corporation |
| (406) 935- | Wireless | Broadus | Cable &Communications Corporation |
| (406) 936- | Wireless | Big Timber | Mtpcs |
| (406) 937- | Landline | Sweet Grass | Northern Telephone Cooperative |
| (406) 938- | Wireless | Alzada | Cable &Communications Corporation |
| (406) 939- | Wireless | Glendive | Cellco Partnership DBA Verizon Wireless |
| (406) 941- | Wireless | Glendive | Cellco Partnership DBA Verizon Wireless |
| (406) 942- | Wireless | Glasgow | Cellco Partnership DBA Verizon Wireless |
| (406) 943- | Landline | Sidney | Level 3 Communications |
| (406) 944- | Landline | Miles City | Level 3 Communications |
| (406) 945- | Wireless | Havre | New Cingular Wireless PCS |
| (406) 946- | Landline | Livingston | Level 3 Communications |
| (406) 947- | Landline | Musselshell | Mid-rivers Telephone Cooperative |
| (406) 948- | Landline | Glendive | Level 3 Communications |
| (406) 949- | Wireless | Townsend | New Cingular Wireless PCS |
| (406) 951- | Wireless | Miles City | New Cingular Wireless PCS |
| (406) 952- | Landline | Great Falls | Bresnan Broadband Of Montana |
| (406) 953- | Landline | Hardin | Level 3 Communications |
| (406) 954- | Wireless | Roy | Cable &Communications Corporation |
| (406) 956- | Wireless | Baker | New Cingular Wireless PCS |
| (406) 957- | Wireless | Terry | Cable &Communications Corporation |
| (406) 960- | Landline | Dillon | Level 3 Communications |
| (406) 961- | Landline | Corvallis | Qwest Corporation |
| (406) 962- | Landline | Joliet | Qwest Corporation |
| (406) 963- | Landline | Froid | Nemont Telephone Cooperative |
| (406) 964- | Landline | Vaughn | Qwest Corporation |
| (406) 965- | Landline | Vaughn | Qwest Corporation |
| (406) 966- | Landline | Shelby | Level 3 Communications |
| (406) 967- | Landline | Worden | Project Telephone Co. |
| (406) 968- | Landline | Lewistown | Level 3 Communications |
| (406) 969- | Landline | Billings | Bresnan Broadband Of Montana |
| (406) 971- | Wireless | Plevna | Cable &Communications Corporation |
| (406) 972- | Landline | Capitol | West River Cooperative Telephone Company |
| (406) 973- | Wireless | Sidney | Cable &Communications Corporation |
| (406) 974- | Wireless | Circle | Cable &Communications Corporation |
| (406) 975- | Wireless | Ekalaka | Cable &Communications Corporation |
| (406) 977- | Wireless | Jordan | Cable &Communications Corporation |
| (406) 978- | Wireless | Baker | Cable &Communications Corporation |
| (406) 979- | Wireless | Richey | Cable &Communications Corporation |
| (406) 980- | Wireless | Townsend | Cellco Partnership DBA Verizon Wireless |
| (406) 981- | Wireless | Miles City | Cable &Communications Corporation |
| (406) 982- | Landline | Rollins | Centurytel Of Montana DBA Centurylink |
| (406) 983- | Wireless | Ashland | Cable &Communications Corporation |
| (406) 984- | Landline | Birney | Range Telephone Cooperative |
| (406) 987- | Wireless | Glendive | Cable &Communications Corporation |
| (406) 988- | Landline | Dillon | Level 3 Communications |
| (406) 989- | Wireless | Glendive | New Cingular Wireless PCS |
| (406) 991- | Landline | Marion | Zayo Group LLC |
| (406) 992- | Landline | Helena | Ymax Communications Corp. |
| (406) 993- | Landline | Ennis | 3 Rivers Telephone Cooperative |
| (406) 994- | Landline | Bozeman | Qwest Corporation |
| (406) 995- | Landline | Ennis | 3 Rivers Telephone Cooperative |
| (406) 996- | Landline | Helena | Bresnan Broadband Of Montana |
| (406) 999- | Landline | Gallatin Gateway | Montana Opticom |