Area code 406

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Area code 250 Area code 403 Area code 306 Area code 701 Area code 605 Area code 307 Area code 208Map of Montana area code in blue (with border states and provinces)
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Coordinates: 47°00′01″N 109°45′04″W / 47.00028°N 109.75111°W / 47.00028; -109.75111 (State of Montana)[1] Area code 406 is the telephone area code covering the entire state of Montana. It has been Montana's area code since area codes were created in 1947.

Exchanges in area code 406[edit]

  • Billings: 200 206 208 237 238 245 247 248 252 254 255 256 259 272 281 294 318 325 371 373 384 435 534 545 591 598 620 647 651 652 655 656 657 661 670 671 672 690 694 696 697 698 702 715 794 839 850 855 860 861 867 869 876 894 896 927 969
  • Bozeman and Gallatin Valley: 209 219 312 404 414 451 522 539 548 551 556 570 577 579 580 581 582 585 586 587 589 595 599 600 624 898 916 920 922 994
  • Butte: 221 299 310 479 490 491 494 496 497 498 533 565 593 723 782 792
  • Great Falls: 205 216 217 231 268 315 403 452 453 454 455 564 590 604 727 731 750 760 761 770 771 781 788 791 799 836 866 868 870 899 923 952 964 965
  • Fort Benton: 621, 622
  • Hardin: 623
  • Helena: 202 204 227 324 410 417 422 430 431 437 438 439 440 441 442 443 444 447 449 457 458 459 461 465 475 495 502 513 558 594 634 841 933 992 996
  • Kalispell: 758, 755, 752, 751, 250, 257, 270
  • Missoula: 203, 207, 214, 218, 239, 240, 241, 243, 251, 258, 273, 274, 315, 327, 329, 370, 396, 493, 496, 523, 529, 531, 532, 540, 541, 542, 543, 544, 546 549, 550, 552, 626, 721, 726, 728, 829, 830, 880

Use by Google[edit]

On December 10, 2008, Google's Gmail Blog announced that SMS messages could be sent from inside Gmail. The messages are sent from numbers in the 406 area code. Each number is unique and can be bookmarked in your phone for replies or future use.[2]

Google also employs the use of area code 406 for the assignment of reply-to or callback numbers for Google Voice's customers' contacts.

References[edit]

  1. ^ "State of Montana". Geographic Names Information System, U.S. Geological Survey. 
  2. ^ Official GMail Blog (10 December 2008). "Really new in Labs this time: SMS Text Messaging for chat". Archived from the original on 4 March 2011. Retrieved 5 March 2011. 

See also[edit]

Montana area codes: 406
North: 403/587, 250/778/236, 306/639
West: 208 406 East: 605, 701
South: 208, 307
Alberta area codes: 403, 587, 780
British Columbia area codes: 236, 250, 604, 778
Saskatchewan area codes: 306, 639
Idaho area codes: 208
North Dakota area codes: 701
South Dakota area codes: 605
Wyoming area codes: 307