Area code 406
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Area code 406 is the telephone area code serving all of the state of Montana.
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[edit] Exchanges in area code 406
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- Billings: 206, 208, 215, 237, 238, 245, 247, 248, 252, 254, 255, 256, 259, 272, 281, 294, 325, 371, 373, 384, 435, 520, 534, 545, 591, 598, 600, 620, 651, 652, 655, 656, 657, 661, 670, 671, 672, 690, 694, 696, 697, 698, 729, 794, 839, 850, 851, 855, 860, 861, 867, 869, 894, 896, 999
- Bozeman and Gallatin Valley: 209, 219, 282, 284, 285, 388, 451, 522, 539, 548, 551, 556, 557, 570, 577, 581, 582, 585, 586, 587, 624 (Bresnan cable VOIP), 763, 920, 922, 994
- Butte: 221, 299, 310, 490, 491, 494, 496, 533, 565, 595, 723, 782, 792
- Great Falls: 205, 216, 217, 231, 268, 403, 424, 425, 452, 453, 454, 455, 564, 590, 727, 731, 750, 760, 761, 770, 771, 781, 788, 791, 799, 836, 866, 868, 970, 899, 923, 952
- Helena: 202, 204, 225, 227, 235, 266, 324, 362, 410, 422, 430, 431, 437, 438, 439, 441, 442, 443, 444, 449, 457, 458, 461, 465, 475, 492, 495, 547, 562, 594, 634, 667, 841, 846, 871, 932, 933
[edit] Use by Google
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.[1]
Google also employs the use of area code 406 for the assignment of reply-to or callback numbers for Google Voice's customers' contacts.
[edit] References
[edit] See also
| State of Montana area code: 406 | ||
|---|---|---|
| North: 403/587, 250/778, 306 | ||
| West: 208 | 406 | East: 605, 701 |
| South: 208, 307 | ||
| Province of Alberta Area codes: 403, 587, 780 | ||
| Province of British Columbia Area Codes: 250, 604, 778 | ||
| State of Idaho Area Code: 208 | ||
| State of North Dakota area code: 701 | ||
| State of South Dakota area code: 605 | ||
| State of Wyoming area code: 307 | ||
