Montana Telephone Exchanges
| 201* | FORSYTH |
| 202* | HELENA |
| 203 | MISSOULA |
| 204 | HELENA |
| 205 | GREAT FALLS |
| 206 | BILLINGS |
| 207* | MISSOULA |
| 208* | BILLINGS |
| 209* | BOZEMAN |
| 210* | SEELEY LAKE |
| 212* | KALISPELL |
| 213 | COLSTRIP |
| 215 | BILLINGS |
| 216 | GREAT FALLS |
| 217 | GREAT FALLS |
| 219 | BOZEMAN |
| 220* | LIVINGSTON |
| 221 | BUTTE |
| 222 | LIVINGSTON |
| 223* | LIVINGSTON |
| 224* | LIVINGSTON |
| 225 | BOULDER |
| 226 | EAST GLACIER PARK |
| 227 | HELENA |
| 228 | GLASGOW |
| 229* | CUT BANK |
| 230* | GLASGOW |
| 231* | GREAT FALLS |
| 232 | MILES CITY |
| 233 | MILES CITY |
| 234 | MILES CITY |
| 235 | WOLF CREEK |
| 236 | NEIHART |
| 237 | BILLINGS |
| 238 | BILLINGS |
| 239* | MISSOULA |
| 240* | MISSOULA |
| 241* | MISSOULA |
| 242* | THOMPSON FALLS |
| 243 | MISSOULA |
| 244 | POTOMAC |
| 245 | BILLINGS |
| 246 | DIXON |
| 247 | BILLINGS |
| 248 | BILLINGS |
| 249* | KALISPELL |
| 250* | KALISPELL |
| 251 | MISSOULA |
| 252 | BILLINGS |
| 253* | KALISPELL |
| 254 | BILLINGS |
| 255 | BILLINGS |
| 256 | BILLINGS |
| 257 | KALISPELL |
| 258 | MISSOULA |
| 259 | BILLINGS |
| 260* | KALISPELL |
| 261* | KALISPELL |
| 262 | HAVRE |
| 263* | GLASGOW |
| 264 | FORT SHAW |
| 265 | HAVRE |
| 266 | TOWNSEND |
| 267 | DIVIDE |
| 268 | GREAT FALLS |
| 269 | CONRAD |
| 270* | KALISPELL |
| 271 | CONRAD |
| 272 | BILLINGS |
| 273 | MISSOULA |
| 274 | MISSOULA |
| 275 | PABLO |
| 276 | LIMA |
| 277 | BELT |
| 278 | CONRAD |
| 279 | VALIER |
| 280* | ST REGIS |
| 281 | BILLINGS |
| 282 | MANHATTAN |
| 283 | LIBBY |
| 284 | MANHATTAN |
| 285 | THREE FORKS |
| 286 | RESERVE |
| 287 | WHITEHALL |
| 288 | DRUMMOND |
| 289* | CONRAD |
| 291* | LIBBY |
| 292 | JOPLIN |
| 293 | LIBBY |
| 294 | BILLINGS |
| 295 | TROY |
| 296 | EUREKA |
| 297 | EUREKA RURAL |
| 298* | COLUMBUS |
| 299 | BUTTE |
| 305 | FORSYTH |
| 310 | BUTTE |
| 315 | MISSOULA |
| 320* | ROUNDUP |
| 321* | COLUMBUS |
| 322 | COLUMBUS |
| 323 | ROUNDUP |
| 324 | HELENA |
| 325 | BILLINGS |
| 326 | REED POINT |
| 327 | MISSOULA |
| 328 | ABSAROKEE |
| 329 | MISSOULA |
| 331* | ROUNDUP |
| 332 | PABLO |
| 333 | LIVINGSTON |
| 335 | SWEETGRASS |
| 336 | CUT BANK-NORTH |
| 337 | KEVIN OILMONT |
| 338 | BROWNING |
| 339 | ETHRIDGE |
| 340* | FORSYTH |
| 342 | HYSHAM |
| 343 | WYOLA |
| 345 | GLENDIVE |
| 346 | FORSYTH |
| 347 | ROSEBUD |
| 348 | HUNTLEY |
| 349 | ALTA |
| 350* | LEWISTOWN |
| 351* | FORSYTH |
| 352 | BOX ELDER |
| 353 | HARLEM |
| 354 | ROCK SPRINGS |
| 355 | RUDYARD |
| 356 | FORSYTH |
| 357 | CHINOOK |
| 358 | MELSTONE |
| 359 | GLENDIVE |
| 360* | HAMILTON |
| 362 | LINCOLN |
| 363 | HAMILTON |
| 364 | HINSDALE |
| 365 | GLENDIVE |
| 366* | LEWISTOWN |
| 367 | GLASGOW-NORTH |
| 368 | CANYON CREEK |
| 369* | HAMILTON |
| 370* | MISSOULA |
| 372 | KREMLIN |
| 373 | BILLINGS |
| 374 | MOORE |
| 375 | HAMILTON |
| 376 | GILDFORD |
| 377 | GLENDIVE |
| 378 | BIG SANDY |
| 379 | TURNER |
| 380* | LEWISTOWN |
| 381* | HAMILTON |
| 382* | SUPERIOR |
| 383 | DODSON |
| 384 | BILLINGS |
| 385 | WESTBY |
| 386 | HOPP ILIAD |
| 387 | HUNGRY HORSE |
| 388 | BELGRADE |
| 389 | WEST GLACIER |
| 390* | HAVRE-SOUTH |
| 392 | WOLF POINTNORTH |
| 394 | SIMPSON |
| 395 | HAVRE-SOUTH |
| 396* | MISSOULA |
| 397* | HINGHAM |
| 398 | HAVRE-NORTH |
| 399* | HAVRE-SOUTH |
| 410* | HELENA |
| 415 | BUTTE |
| 421 | MILES CITY-SOUTH |
| 423 | HOBSON |
| 424 | SHELBY |
| 425* | RED LODGE |
| 426* | RED LODGE |
| 427 | BROADUS-SOUTH |
| 428 | GRASS RANGE |
| 429 | WINNETT |
| 430 | HELENA |
| 431* | HELENA |
| 432 | DEVON |
| 433 | SIDNEY |
| 434 | SHELBY |
| 435 | BILLINGS |
| 436 | BROADUS |
| 438* | HELENA |
| 439* | HELENA |
| 441 | HELENA |
| 442 | HELENA |
| 443 | HELENA |
| 444 | HELENA |
| 445 | RED LODGE |
| 446 | RED LODGE |
| 447 | HELENA |
| 448 | POPLAR-NORTH |
| 449 | HELENA |
| 450* | SHELBY |
| 452 | GREAT FALLS |
| 453 | GREAT FALLS |
| 454 | GREAT FALLS |
| 455 | GREAT FALLS |
| 456 | CHESTER-SOUTH |
| 457 | HELENA |
| 458 | HELENA |
| 459* | HELENA |
| 460* | SHELBY |
| 461* | HELENA |
| 462 | WINIFRED |
| 463 | POWER |
| 464 | ROY |
| 465* | HELENA |
| 466 | CHOTEAU |
| 467 | FAIRFIELD |
| 468 | CASCADE |
| 469 | PENDROY |
| 470* | SHELBY |
| 472 | DUPUYER |
| 473 | JUDITH GAP |
| 474 | FLAXVILLE |
| 475 | HELENA |
| 476 | DUTTON |
| 477 | LAME DEER |
| 478* | SIDNEY |
| 479* | BUTTE |
| 480* | SIDNEY |
| 482 | SIDNEY |
| 483 | DAGMAR |
| 484 | CROOKED CREEK |
| 485 | CIRCLE |
| 486 | FALLON |
| 487 | SCOBEY |
| 488 | SIDNEY |
| 489* | SIDNEY |
| 490* | BUTTE |
| 491* | BUTTE |
| 492 | AVON |
| 494 | BUTTE |
| 495 | HELENA |
| 496 | BUTTE |
| 497 | BUTTE |
| 498* | BUTTE |
| 499* | SEELEY LAKE |
| 515 | BOZEMAN |
| 521* | TOWNSEND |
| 522 | BOZEMAN |
| 523 | MISSOULA |
| 524 | ST MARIE |
| 525 | WOLF POINTSOUTH |
| 526 | FORT PECK |
| 527 | SACO |
| 528 | RONAN |
| 531* | MISSOULA |
| 532 | MISSOULA |
| 533 | BUTTE |
| 535 | LEWISTOWN |
| 537 | MELVILLE |
| 538 | LEWISTOWN |
| 539* | BOZEMAN |
| 540 | MISSOULA |
| 541 | MISSOULA |
| 542 | MISSOULA |
| 543 | MISSOULA |
| 544* | MISSOULA |
| 545 | BILLINGS |
| 546* | MISSOULA |
| 547 | WHITE SULPHUR SPRINGS |
| 548 | BOZEMAN |
| 549 | MISSOULA |
| 550* | MISSOULA |
| 551 | BOZEMAN |
| 552 | MISSOULA |
| 553 | GREAT FALLS |
| 554 | BROADUS-NORTH |
| 555 | DIRECTORY ASSISTANCE |
| 556 | BOZEMAN |
| 557 | JORDAN |
| 558 | HELENA |
| 559* | ANACONDA |
| 560* | ANACONDA |
| 562 | AUGUSTA |
| 563 | ANACONDA |
| 564 | GREAT FALLS |
| 565 | BUTTE |
| 566 | STANFORD |
| 567 | DENTON |
| 568 | RYEGATE |
| 569 | SQUAW GAP-WEST |
| 570* | BOZEMAN |
| 572 | MARTINSDALE |
| 574 | SILVERTIP |
| 575 | RYEGATE-NORTH |
| 577 | BOZEMAN |
| 578 | WILSALL |
| 579* | BOZEMAN |
| 580* | BOZEMAN |
| 581* | BOZEMAN |
| 582 | BOZEMAN |
| 583 | BLOOMFIELD |
| 584 | LINDSAY |
| 585 | BOZEMAN |
| 586 | BOZEMAN |
| 587 | BOZEMAN |
| 588 | CARLYLE |
| 589* | BOZEMAN |
| 590* | GREAT FALLS |
| 591* | BILLINGS |
| 592 | BUSBY |
| 593* | BUTTE |
| 594* | HELENA |
| 595* | BOZEMAN |
| 596* | DILLON |
| 597* | SHELBY |
| 598* | BILLINGS |
| 615* | HELENA |
| 621* | FORT BENTON |
| 622 | FORT BENTON |
| 624 | BOZEMAN |
| 626 | FRENCHTOWN |
| 627 | EAST CONRAD |
| 628 | LAUREL |
| 629* | HARDIN |
| 632 | HARLOWTON |
| 633 | LAUREL |
| 634 | HELENA |
| 635 | TERRY |
| 636 | LAVINA |
| 637 | TERRY |
| 638 | HARDIN |
| 639 | LODGEGRASS |
| 640* | WEST YELLOW STONE |
| 641* | WEST YELLOW STONE |
| 642 | VICTOR |
| 644 | CHARLO |
| 646 | WEST YELLOW STONE |
| 648 | HINSDALE-NORTH |
| 649 | ST REGIS |
| 650* | WOLF POINT |
| 651 | BILLINGS |
| 652 | BILLINGS |
| 653 | WOLF POINT |
| 654 | MALTA |
| 655 | BILLINGS |
| 656 | BILLINGS |
| 657 | BILLINGS |
| 658 | MALTA-SOUTH |
| 659 | PARKMAN-NORTH |
| 660* | DILLON |
| 661* | BILLINGS |
| 662 | BRIDGER |
| 663 | RAPELJE |
| 664 | BELFRY |
| 665 | HARDIN |
| 666 | FORT SMITH |
| 667 | BROADVIEW |
| 668 | FROMBERG |
| 669 | MOLT |
| 670* | BILLINGS |
| 671* | BILLINGS |
| 672* | BILLINGS |
| 673 | HAYS |
| 674 | WHITEWATER |
| 675 | PABLO |
| 676 | RONAN |
| 677 | SEELEY LAKE |
| 678 | HAUGAN |
| 679* | HARDIN |
| 681 | GRANT |
| 682 | ENNIS |
| 683 | DILLON |
| 684 | TWIN BRIDGES |
| 685 | HARRISON |
| 686 | CLYDE PARK |
| 687 | GLENDIVE-WEST |
| 689 | WISDOM |
| 690* | BILLINGS |
| 691* | ANACONDA |
| 693 | WARM SPRINGS |
| 695 | FRAZER |
| 698* | BILLINGS |
| 699* | HARDIN |
| 707* | LEWISTOWN |
| 715 | GREAT FALLS |
| 720* | COLSTRIP |
| 721 | MISSOULA |
| 722 | ALBERTON |
| 723 | BUTTE |
| 724 | GLENTANA |
| 725 | LARSLAN |
| 726 | ARLEE |
| 727 | GREAT FALLS |
| 728 | MISSOULA |
| 731 | GREAT FALLS |
| 732 | ST MARY |
| 733 | HIGHWOOD |
| 734 | CARTER |
| 735 | GEYSER |
| 736 | STOCKETT |
| 737 | GERALDINE |
| 738 | RAYNESFORD |
| 739 | LOMA |
| 740 | COLSTRIP |
| 741 | HOT SPRINGS |
| 742 | FAIRVIEW |
| 745 | ST IGNATIUS |
| 746 | NASHUA |
| 747 | FAIRVIEW |
| 748 | COLSTRIP |
| 749* | COLSTRIP |
| 751 | KALISPELL |
| 752 | KALISPELL |
| 753 | BRADY |
| 754 | CONDON |
| 755 | KALISPELL |
| 756 | KALISPELL |
| 757 | DECKER |
| 758 | KALISPELL |
| 759 | CHESTER |
| 760 | GREAT FALLS |
| 761 | GREAT FALLS |
| 762 | OPHEIM |
| 763 | GALLATIN GATEWAY |
| 764 | FRANNIE-NORTH |
| 765 | PLENTYWOOD |
| 766 | FROID |
| 767 | RIDGE |
| 768 | POPLAR |
| 769 | BAINVILLE |
| 770* | GREAT FALLS |
| 771 | GREAT FALLS |
| 772 | PLEVNA |
| 773 | RICHEY |
| 774 | LAMBERT |
| 775 | EKALAKA |
| 776 | SAVAGE |
| 777 | STEVENSVILLE |
| 778 | BAKER |
| 779 | FLAXVILLE RURAL |
| 780* | COLUMBUS |
| 781* | GREAT FALLS |
| 782 | BUTTE |
| 783 | SCOBEY RURAL |
| 784 | ASHLAND |
| 785 | NASHUA-NORTH |
| 786 | BROCKTON |
| 787 | CULBERTSON |
| 788* | GREAT FALLS |
| 789 | MEDICINE LAKE |
| 790* | CULBERTSON |
| 791 | GREAT FALLS |
| 792 | BUTTE |
| 793 | OVANDO |
| 795 | WIBAUX |
| 796 | WIBAUX |
| 797 | ANACONDA |
| 798 | SIDNEY-WEST |
| 799* | GREAT FALLS |
| 808* | HAVRE |
| 818* | RED LODGE |
| 821 | DARBY |
| 822 | SUPERIOR |
| 823 | LIVINGSTON |
| 824* | ST IGNATIUS |
| 825 | CLINTON |
| 826 | PLAINS |
| 827 | THOMPSON FALLS |
| 828 | ALZADA |
| 829 | MISSOULA |
| 832 | WISE RIVER |
| 833* | RONAN |
| 834 | JACKSON |
| 835 | MELROSE |
| 837 | BIGFORK |
| 838 | COOKE CITY |
| 841 | HELENA |
| 842 | SHERIDAN |
| 843 | VIRGINIA CITY |
| 844 | LAKESIDE |
| 846 | DEER LODGE |
| 847 | NOXON |
| 848 | GARDINER |
| 849 | ELMO |
| 850* | BILLINGS |
| 852* | MILES CITY |
| 853* | MILES CITY |
| 854 | MARION |
| 855* | BILLINGS |
| 856 | CUSTER |
| 857 | SOMERS |
| 858 | KALISPELL |
| 859 | PHILIPSBURG |
| 860* | BILLINGS |
| 861* | BILLINGS |
| 862 | WHITEFISH |
| 863 | WHITEFISH |
| 864 | ALBERTON-SOUTH |
| 865* | DILLON |
| 866 | GREAT FALLS |
| 867 | BILLINGS |
| 868* | GREAT FALLS |
| 869 | BILLINGS |
| 870* | GREAT FALLS |
| 873 | CUT BANK |
| 874 | MILES CITY |
| 875 | POMPEYS PILLAR |
| 877 | WEST BEACH |
| 880* | MISSOULA |
| 881 | OLNEY |
| 882 | EUREKA RURAL |
| 883 | POLSON |
| 884 | POLSON |
| 885* | KALISPELL |
| 886 | SWAN LAKE |
| 887 | FINLEY PT |
| 888 | WEST GLACIER |
| 889 | EUREKA RURAL |
| 891* | BAKER |
| 892 | COLUMBIA FALLS |
| 893 | PEERLESS |
| 894 | BILLINGS |
| 895 | OUTLOOK |
| 896 | BILLINGS |
| 899* | GREAT FALLS |
| 920* | BOZEMAN |
| 922 | BOZEMAN |
| 925* | DILLON |
| 930* | BIG TIMBER |
| 931* | BIG TIMBER |
| 932 | BIG TIMBER |
| 933 | HELENA |
| 935* | BROADUS |
| 936* | BIG TIMBER |
| 937* | SUNBURST |
| 939* | GLENDIVE-WEST |
| 941* | GLENDIVE-WEST |
| 943 | SIDNEY |
| 944 | MILES CITY |
| 945* | HAVRE |
| 946 | LIVINGSTON |
| 947 | MUSSELSHELL |
| 948 | GLENDIVE |
| 949* | TOWNSEND |
| 951* | MILES CITY |
| 953 | HARDIN |
| 960 | DILLON |
| 961 | HAMILTON |
| 962 | JOLIET |
| 963 | FROID RURAL |
| 964 | GREAT FALLS |
| 965 | GREAT FALLS |
| 966 | SHELBY |
| 967 | WORDEN |
| 968 | LEWISTOWN |
| 969 | HAVRE |
| 971* | PLEVNA |
| 972 | CAMP CROOK-WEST |
| 974* | CIRCLE |
| 975* | EKALAKA |
| 977* | JORDAN |
| 978* | BAKER |
| 979* | RICHEY |
| 980* | TOWNSEND |
| 982 | YELLOW BAY |
| 983* | ASHLAND |
| 984 | BIRNEY |
| 989* | GLENDIVE-WEST |
| 993 | BIG SKY |
| 994 | BOZEMAN |
| 995 | BIG SKY |
| *Indicates Wireless or PCS | |