Image:Area_code_MT.png, Map of Montana area code in blue (with border states and provinces) poly 67 33 0 20 1 1 51 0 58 24

Area code 250 Area code 250 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of British Columbia outside the Lower Mainland, including Vancouver Island–home to the provincial capital, Victoria–and the province ...

poly 66 33 57 25 52 0 198 0 198 54

Area code 403 Area code 403 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of Alberta. The numbering plan area encompasses the southern third of the province, which includes the Calgary area. This numbering plan a ...

poly 198 55 198 0 419 0 418 72 265 63 Area code 306 poly 373 71 419 71 419 212 364 210

Area code 701 Image:Area_code_ND.png, Map of North Dakota area code in blue (with border states and provinces) poly 0 0 106 0 106 36 0 30 Area code 306 poly 109 1 107 34 239 35 298 32 297 0 Area code 204 poly 241 36 298 33 300 144 296 142 284 147 28 ...

poly 364 212 363 267 419 267 419 212

Area code 605 Image:Area_code_SD.png, The map above is clickable; click on an area code to go to the page for that code. South Dakota's area code in blue with border states shown in yellow, orange and green, 350px, thumb poly 93 2 86 105 1 98 1 1 Area code ...

poly 140 233 133 268 363 269 362 255

Area code 307 Image:Area_code_WY.png, Map of Wyoming showing its area code in blue (with border states) #poly 83 35 344 34 353 243 75 246 Area Code 397 poly 347 139 425 139 420 0 343 0 Area code 605 poly 348 139 429 139 420 243 352 243 Area code 3 ...

poly 1 21 15 23 6 70 12 85 12 99 37 137 47 141 36 165 39 178 31 179 32 187 35 195 51 188 58 216 65 222 60 221 61 230 71 230 71 248 77 254 79 247 92 253 93 246 110 250 121 250 125 243 130 256 135 259 134 268 1 267

Area codes 208 and 986 Area codes 208 and 986 are the area codes in the North American Numbering Plan for all of Idaho. Area code 208 is one of the 86 original area codes created by AT&T in 1947. It was Idaho's sole area code until 2017, when 986 was added as an overla ...

desc top-right Area code 406 is the

telephone A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into e ...

area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...

covering the entire state of

Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi ...

. It has been Montana's only area code since area codes were created in 1947. As of 2013, there were 1.7 million lines served by 47 carriers; all but two wireline providers support

local number portability Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange ca ...

(the exceptions are small rural independents Hot Springs Telephone Company and Northern Telephone Cooperative). Sufficient available codes for new exchanges in the 406 area code exist to meet anticipated demand until 2027;

number pooling Number pooling is a method of reallocating telephony numbering space in the North American Numbering Plan, primarily in growth areas in the United States. Instead of allocating blocks of ten thousand numbers to each carrier in each community, a bl ...

has been implemented in response to increased demand and inefficient use of 406 numbering resources. Prior to October 2021, area code 406 had telephone numbers assigned for the

central office code The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international calling ...

988. In 2020, ''988'' was designated nationwide as a dialing code for the

National Suicide Prevention Lifeline The 988 Suicide & Crisis Lifeline (formerly known as the National Suicide Prevention Lifeline) is a United States-based suicide prevention Suicide prevention is a collection of efforts to reduce the risk of suicide. Suicide is often preven ...

, which created a conflict for exchanges that permit

seven-digit dialing Seven-digit dialing is a telephone dialing procedure customary in some territories of the North American Numbering Plan (NANP) for dialing telephone numbers in the same numbering plan area (NPA). NANP telephone numbers consist of ten digits, of wh ...

. This area code was therefore scheduled to transition to

ten-digit dialing Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telep ...

by October 24, 2021.

Exchanges in area code 406

* Absarokee: 328, 985 * Alberton: 722 * Alta: 349 * Alzada: 828, 938 *

Anaconda Anacondas or water boas are a group of large snakes of the genus '' Eunectes''. They are found in tropical South America. Four species are currently recognized. Description Although the name applies to a group of snakes, it is often used ...

: 559, 560, 563, 691, 797 * Arlee: 726 * Ashland: 784, 983 * Augusta: 562 * Avon: 492 * Bainville: 769 *

Baker A baker is a tradesperson who bakes and sometimes sells breads and other products made of flour by using an oven or other concentrated heat source. The place where a baker works is called a bakery. History Ancient history Since grains ha ...

: 778, 891, 956, 978 * Belfry: 664 *

Belgrade Belgrade ( , ;, ; Names of European cities in different languages: B, names in other languages) is the Capital city, capital and List of cities in Serbia, largest city in Serbia. It is located at the confluence of the Sava and Danube rivers a ...

: 388, 813, 924 *

Belt Belt may refer to: Apparel * Belt (clothing), a leather or fabric band worn around the waist * Championship belt, a type of trophy used primarily in combat sports * Colored belts, such as a black belt or red belt, worn by martial arts practit ...

: 277 * Bigfork: 420, 837 * Big Sandy: 378 * Big Sky: 993, 995, 999 * Big Timber: 930, 931, 932, 936 *

Billings Billings is the largest city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Met ...

: 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, 601, 606, 620, 647, 651, 652, 655, 656, 657, 661, 670, 671, 672, 690, 694, 696, 697, 698, 702, 794, 839, 850, 855, 860, 861, 867, 869, 876, 894, 896, 927, 969 *

Birney A Birney or Birney Safety Car is a type of streetcar that was manufactured in the United States in the 1910s and 1920s. The design was small and light and was intended to be an economical means of providing frequent service at a lower infrastruc ...

: 984 * Bloomfield: 583 *

Boulder In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In c ...

: 225, 313 *

Box Elder ''Acer negundo'', the box elder, boxelder maple, Manitoba maple or ash-leaved maple, is a species of maple native to North America. It is a fast-growing, short-lived tree with opposite, compound leaves. It is sometimes considered a weedy or inva ...

: 352 * Bozeman: 209, 219, 312, 404, 414, 451, 522, 539, 548, 551, 556, 570, 577, 579, 580, 581, 582, 585, 586, 587, 589, 595, 599, 600, 602, 624, 898, 916, 920, 922, 994 *

Brady Brady may refer to: People * Brady (surname) * Brady (given name) * Brady (nickname) * Brady Boone, a ring name of American professional wrestler Dean Peters (1958–1998) Places in the United States * Brady, Montana, a census-designated plac ...

: 753 * Bridger: 662, 800 * Broadus: 436, 935 * Broadview: 667 * Brockton: 786 * Browning: 338, 573 * Busby: 592 *

Butte __NOTOC__ In geomorphology, a butte () is an isolated hill with steep, often vertical sides and a small, relatively flat top; buttes are smaller landforms than mesas, plateaus, and tablelands. The word ''butte'' comes from a French word mea ...

: 221, 299, 310, 479, 490, 491, 494, 496, 497, 498, 533, 565, 593, 723, 782, 792 * Canyon Creek: 368 * Carlyle: 588 *

Carter Carter(s), or Carter's, Tha Carter, or The Carter(s), may refer to: Geography United States * Carter, Arkansas, an unincorporated community * Carter, Mississippi, an unincorporated community * Carter, Montana, a census-designated place * Carter ...

: 734 *

Cascade Cascade, Cascades or Cascading may refer to: Science and technology Science *Cascade waterfalls, or series of waterfalls * Cascade, the CRISPR-associated complex for antiviral defense (a protein complex) * Cascade (grape), a type of fruit * Bioc ...

: 468 * Charlo: 644 *

Chester Chester is a cathedral city and the county town of Cheshire, England. It is located on the River Dee, close to the English–Welsh border. With a population of 79,645 in 2011,"2011 Census results: People and Population Profile: Chester Loca ...

: 759 * Chinook: 357 * Choteau: 466 *

Circle A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. Equivalently, it is the curve traced out by a point that moves in a plane so that its distance from a given point is const ...

: 485, 974 * Clinton: 330, 825 * Clyde Park: 686 *

Colstrip Colstrip is a city in Rosebud County, Montana, Rosebud County, Montana, United States. The population was 2,096 at the 2020 United States Census, 2020 census. Established in 1924 and incorporated as a city in 1998, Colstrip is the largest city in ...

: 213, 720, 740, 748, 749 * Columbia Falls: 892, 897 *

Columbus Columbus is a Latinized version of the Italian surname "''Colombo''". It most commonly refers to: * Christopher Columbus (1451-1506), the Italian explorer * Columbus, Ohio, capital of the U.S. state of Ohio Columbus may also refer to: Places ...

: 290, 298, 321, 322, 780 * Condon: 754 * Conrad: 271, 278, 289, 505, 576 * Cooke City: 838 *

Crooked Creek Crooked Creek may refer to: Streams In Australia * Crooked Creek (Clyde River), a tributary of the Clyde River in New South Wales * Crooked Creek (Walsh River), a tributary of the Walsh River in Queensland In the United States * Crooked Cree ...

: 484 * Culbertson: 514, 787, 790 *

Custer George Armstrong Custer (December 5, 1839 – June 25, 1876) was a United States Army officer and cavalry commander in the American Civil War and the American Indian Wars. Custer graduated from West Point in 1861 at the bottom of his class, b ...

: 856 *

Cut Bank A cut bank, also known as a river cliff or river-cut cliff, is the outside bank of a curve or meander in a water channel (stream), which is continually undergoing erosion.Essentials of Geology, 3rd Ed, Stephen Marshak Cut banks are found in abu ...

: 229, 391, 845, 873 * Dagmar: 483 * Darby: 821 * Decker: 757 *

Deer Lodge Deer Lodge is a city in and the county seat of Powell County, Montana, United States. The population was 2,938 at the 2020 census. Description The city is perhaps best known as the home of the Montana State Prison, a major local employer. ...

: 415, 645, 846 * Denton: 567 *

Devon Devon ( , historically known as Devonshire , ) is a ceremonial and non-metropolitan county in South West England. The most populous settlement in Devon is the city of Plymouth, followed by Devon's county town, the city of Exeter. Devon is ...

: 432 *

Dillon Dillon may refer to: People *Dillon (surname) * Dillon (given name) * Dillon (singer) (born 1988), Brazilian singer *Viscount Dillon, a title in the Peerage of Ireland Places Canada *Dillon, Saskatchewan United States *Dillon Beach, Californi ...

: 596, 660, 683, 865, 925, 960, 988 * Divide: 267, 553 * Dixon: 246 * Dodson: 383 * Drummond: 288 * Dupuyer: 472 * Dutton: 476 * East Conrad: 627 * East Glacier Park: 226 *

Ekalaka Ekalaka is a town in and the county seat of Carter County, Montana, United States. The population was 399 at the 2020 census. History Ekalaka was named after a Sioux girl, Ijkalaka, who was the wife of David Harrison Russell, a scout. Ijka ...

: 775, 975 *

Elmo Elmo is a red Muppet monster character on the long-running PBS/ HBO children's television show ''Sesame Street''. A furry red monster who has a falsetto voice and illeism, he hosts the last full five-minute segment (fifteen minutes prio ...

: 631, 849 *

Ennis Ennis () is the county town of County Clare, in the mid-west of Ireland. The town lies on the River Fergus, north of where the river widens and enters the Shannon Estuary. Ennis is the largest town in County Clare, with a population of 25,27 ...

: 682 * Ethridge: 339 *

Eureka Eureka (often abbreviated as E!, or Σ!) is an intergovernmental organisation for research and development funding and coordination. Eureka is an open platform for international cooperation in innovation. Organisations and companies applying th ...

: 296 *

rural: 297, 882, 889 * Fairfield: 467 * Fairview: 742, 747 * Fallon: 486 * Finley Point: 571, 887 * Flaxville: 474 * Flaxville rural: 779 *

Forsyth Forsyth may refer to: Places Oceania * Forsyth Island, Queensland, Australia, one of the West Wellesley Islands (aka Forsyth Islands) * Forsyth Island, Tasmania, Australia * Forsyth Island (New Zealand), in the outer Marlborough Sounds of South I ...

: 201, 346, 351, 356, 729 * Fort Benton: 621, 622 *

Fort Peck Fort Peck is a town in Valley County, Montana, United States. The population was 239 at the 2020 census. History The name Fort Peck is associated with Col. Campbell K. Peck, the partner of Elias H. Durfee in the Leavenworth, Kansas trading fir ...

: 526 *

Fort Shaw Fort Shaw (originally named Camp Reynolds) was a United States Army fort located on the Sun River 24 miles west of Great Falls, Montana, in the United States. It was founded on June 30, 1867, and abandoned by the Army in July 1891. It later serv ...

: 264 * Fort Smith: 666 * Frazer: 695 * Frenchtown: 508, 626 * Froid: 766 * Froid rural: 963 * Fromberg: 668 * Gallatin Gateway: 518, 763 * Gardiner: 848 * Geraldine: 737 *

Geyser A geyser (, ) is a spring characterized by an intermittent discharge of water ejected turbulently and accompanied by steam. As a fairly rare phenomenon, the formation of geysers is due to particular hydrogeological conditions that exist only in ...

: 735 * Gildford: 376 *

Glasgow Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated popul ...

: 228, 230, 263, 831, 942 *

Glendive Glendive is a city in and the county seat of Dawson County, Montana, United States, and home to Dawson Community College. Glendive was established by the Northern Pacific Railway when they built the transcontinental railroad across the northern ...

: 345, 359, 365, 377, 948, 987 * Glentana: 724 *

Grant Grant or Grants may refer to: Places *Grant County (disambiguation) Australia * Grant, Queensland, a locality in the Barcaldine Region, Queensland, Australia United Kingdom *Castle Grant United States * Grant, Alabama *Grant, Inyo County, C ...

: 681 * Grass Range: 428, 928 *

Great Falls Great may refer to: Descriptions or measurements * Great, a relative measurement in physical space, see Size * Greatness, being divine, majestic, superior, majestic, or transcendent People * List of people known as "the Great" *Artel Great (born ...

: 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, 878, 899, 923, 952, 964, 965 *

Hamilton Hamilton may refer to: People * Hamilton (name), a common British surname and occasional given name, usually of Scottish origin, including a list of persons with the surname ** The Duke of Hamilton, the premier peer of Scotland ** Lord Hamilt ...

: 360, 361, 363, 369, 375, 381, 802, 961 * Hardin: 623, 629, 638, 665, 679, 699, 953 *

Harlem Harlem is a neighborhood in Upper Manhattan, New York City. It is bounded roughly by the Hudson River on the west; the Harlem River and 155th Street (Manhattan), 155th Street on the north; Fifth Avenue on the east; and 110th Street (Manhattan), ...

: 353 *

Harlowton Harlowton is a city in and the county seat of Wheatland County, Montana, United States. The population was 955 at the 2020 census. Description The city was once the eastern terminus of electric operations (1914–74) for the "Pacific Extension ...

: 632 *

Harrison Harrison may refer to: People * Harrison (name) * Harrison family of Virginia, United States Places In Australia: * Harrison, Australian Capital Territory, suburb in the Canberra district of Gungahlin In Canada: * Inukjuak, Quebec, or " ...

: 685 * Haugan: 678 * Havre: 262, 265, 808, 879, 945 * Hays: 673 * Helena: 202, 204, 227, 324, 389, 410, 417, 422, 430, 431, 437, 438, 439, 440, 441, 442, 443, 444, 447, 449, 457, 458, 459, 461, 465, 475, 495, 502, 513, 555, 558, 594, 603, 634, 841, 933, 992, 996 * Highwood: 733 * Hingham: 397 * Hinsdale: 364 * Hobson: 423 * Hopp Illiad: 386 *

Hot Springs A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circ ...

: 741 *

Hungry Horse Hungry Horse is a chain of 284 pub restaurants in England, Wales and Scotland which is owned by Greene King Brewery. It was first established in 1995 and promotes itself as offering low cost meals for families and groups. Work began on a new ...

: 387, 929 * Huntley: 348 * Hysham: 342 *

Jackson Jackson may refer to: People and fictional characters * Jackson (name), including a list of people and fictional characters with the surname or given name Places Australia * Jackson, Queensland, a town in the Maranoa Region * Jackson North, Qu ...

: 834 * Joliet: 905, 962 * Joplin: 292 *

Jordan Jordan ( ar, الأردن; tr. ' ), officially the Hashemite Kingdom of Jordan,; tr. ' is a country in Western Asia. It is situated at the crossroads of Asia, Africa, and Europe, within the Levant region, on the East Bank of the Jordan Rive ...

: 557, 977 * Judith Gap: 473 * Kalispell: 212, 249, 250, 253, 257, 260, 261, 270, 300, 309, 314, 407, 471, 607, 751, 752, 755, 756, 758, 858, 871, 885, 890 * Kevin-Oilmont: 337 *

Kremlin The Kremlin ( rus, Московский Кремль, r=Moskovskiy Kreml', p=ˈmɐˈskofskʲɪj krʲemlʲ, t=Moscow Kremlin) is a fortified complex in the center of Moscow founded by the Rurik dynasty, Rurik dynasty. It is the best known of th ...

: 372 * Lakeside: 709, 844 * Lambert: 774, 914 *

Lame Deer Lame Deer (1821-1877), also called "The Elk that Whistles Running," was a first chief of the Miniconjou Lakota (trans. "They who plant by the water") and vice chief of the Wakpokinyan (trans. "To Fly along the river") band. Biography Lame Deer ...

: 477 * Larslan: 725 *

Laurel Laurel may refer to: Plants * Lauraceae, the laurel family * Laurel (plant), including a list of trees and plants known as laurel People * Laurel (given name), people with the given name * Laurel (surname), people with the surname * Laurel (mus ...

: 530, 628, 633, 743, 812 * Lavina: 636 * Lewistown: 350, 366, 380, 535, 538, 707, 708, 968 * Libby: 283, 291, 293, 334, 400 *

Lima Lima ( ; ), originally founded as Ciudad de Los Reyes (City of The Kings) is the capital and the largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rivers, in the desert zone of t ...

: 276, 340 *

Lincoln Lincoln most commonly refers to: * Abraham Lincoln (1809–1865), the sixteenth president of the United States * Lincoln, England, cathedral city and county town of Lincolnshire, England * Lincoln, Nebraska, the capital of Nebraska, U.S. * Lincol ...

: 362 * Lindsay: 584 *

Livingston Livingston may refer to: Businesses * Livingston Energy Flight, an Italian airline (2003–2010) * Livingston Compagnia Aerea, an Italian airline (2011–2014), also known as Livingston Airline * Livingston International, a North American custom ...

: 220, 222, 223, 224, 333, 823, 946 * Lodge Grass: 639 * Loma: 739 *

Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...

: 301, 654, 680 *

Manhattan Manhattan (), known regionally as the City, is the most densely populated and geographically smallest of the five boroughs of New York City. The borough is also coextensive with New York County, one of the original counties of the U.S. state ...

: 282, 284 *

Marion Marion may refer to: People *Marion (given name) *Marion (surname) *Marion Silva Fernandes, Brazilian footballer known simply as "Marion" *Marion (singer), Filipino singer-songwriter and pianist Marion Aunor (born 1992) Places Antarctica * Mario ...

: 854, 991 * Martinsdale: 572 * Medicine Lake: 789 * Melrose: 835 * Melstone: 358 * Melville: 537 * Miles City: 232, 233, 234, 851, 852, 853, 874, 934, 944, 951 *

Missoula Missoula ( ; fla, label=Salish language, Séliš, Nłʔay, lit=Place of the Small Bull Trout, script=Latn; kut, Tuhuⱡnana, script=Latn) is a city in the U.S. state of Montana; it is the county seat of Missoula County, Montana, Missoula Cou ...

: 203, 207, 214, 215, 218, 239, 240, 241, 243, 251, 258, 273, 274, 303, 317, 327, 329, 370, 396, 493, 523, 529, 531, 532, 540, 541, 542, 543, 544, 546, 549, 550, 552, 721, 728, 829, 830, 880, 926 *

Molt In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is the manner in which an animal routinely casts off a part of its body (often, but not always, an outer ...

: 669 * Moore: 374 * Musselshell: 947 *

Nashua Nashua may refer to: * Nashaway people, Native American tribe living in 17th-century New England Places In Australia: * Nashua, New South Wales In the United States: * Nashua, California * Nashua, Iowa * Nashua, Minnesota * Nashua, Kansas City ...

: 746 * Neihart: 236 * North Broadus: 554 * North Cut Bank: 336 * North Frannie: 764 * North Glasgow: 367 * North Hinsdale: 648 * North Nashua: 785 * North Parkman: 643, 659 * North Poplar: 448 * North Havre: 394, 398 * North Ryegate: 575 * North Wolf Point: 392 * Noxon: 847 * Olney: 820, 881 * Opheim: 762 *

Outlook Outlook or The Outlook may refer to: Computing * Microsoft Outlook, an e-mail and personal information management software product from Microsoft * Outlook.com, a web mail service from Microsoft * Outlook on the web, a suite of web applications ...

: 895 *

Ovando Ovando is a surname. Notable people with the surname include: *Alfredo Ovando Candía (1918–1982), Bolivian general, president and dictator * Clementina Díaz y de Ovando (1916–2012), Mexican writer and researcher * Diego de Cáceres y Ovando, ...

: 793 *

Pablo Pablo is a Spanish form of the name Paul. People * Pablo Alborán, Spanish singer *Pablo Aimar, Argentine footballer *Pablo Armero, Colombian footballer * Pablo Bartholomew, Indian photojournalist *Pablo Brandán, Argentine footballer * Pablo Bren ...

: 275, 332, 675 *

Peerless Peerless may refer to: Companies and organizations * Peerless Motor Company, an American automobile manufacturer. * Peerless Brewing Company, in Birkenhead, UK * Peerless Group, an insurance and financial services company in India * Peerless R ...

: 893 * Pendroy: 469 * Philipsburg: 859 *

Plains In geography, a plain is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands. In ...

: 826 * Plentywood: 765 * Plevna: 772, 971 * Polson: 319, 872, 883, 884 * Pompey's Pillar: 875 * Poplar: 768 * Potomac: 244 *

Power Power most often refers to: * Power (physics), meaning "rate of doing work" ** Engine power, the power put out by an engine ** Electric power * Power (social and political), the ability to influence people or events ** Abusive power Power may a ...

: 463 * Rapelje: 663 * Raynesford: 738 * Red Lodge: 425, 426, 445, 446, 818 * Reed Point: 326 *

Reserve Reserve or reserves may refer to: Places * Reserve, Kansas, a US city * Reserve, Louisiana, a census-designated place in St. John the Baptist Parish * Reserve, Montana, a census-designated place in Sheridan County * Reserve, New Mexico, a US vi ...

: 286 * Richey: 773, 979 *

Ridge A ridge or a mountain ridge is a geographical feature consisting of a chain of mountains or hills that form a continuous elevated crest for an extended distance. The sides of the ridge slope away from the narrow top on either side. The line ...

: 767 * Rock Springs: 354 * Ronan: 528, 676, 833 *

Rosebud Rosebud may refer to: * Rose bud, the bud of a rose flower Arts * The name of Jerry Garcia's guitar from 1990 until his death in 1995. * In the 1941 film ''Citizen Kane'', the last words of Charles Foster Kane and an overall plot device. * "Ros ...

: 347 * Roundup: 320, 323, 331, 913 *

Roy Roy is a masculine given name and a family surname with varied origin. In Anglo-Norman England, the name derived from the Norman ''roy'', meaning "king", while its Old French cognate, ''rey'' or ''roy'' (modern ''roi''), likewise gave rise to ...

: 464, 954 *

Rudyard Rudyard may refer to: Places *Rudyard, Mississippi, United States, an unincorporated community *Rudyard, Montana, United States, a census-designated place *Rudyard Township, Michigan, United States *Rudyard, Staffordshire, England, a village ** Rudy ...

: 355 * Ryegate: 568 * Saco: 527 * Saint Ignatius: 744, 745, 824 *

Saint Mary Mary; arc, ܡܪܝܡ, translit=Mariam; ar, مريم, translit=Maryam; grc, Μαρία, translit=María; la, Maria; cop, Ⲙⲁⲣⲓⲁ, translit=Maria was a first-century Jewish woman of Nazareth, the wife of Joseph and the mother of ...

: 732 *

Savage Savage may refer to: Places Antarctica * Savage Glacier, Ellsworth Land * Savage Nunatak, Marie Byrd Land * Savage Ridge, Victoria Land United States * Savage, Maryland, an unincorporated community * Savage, Minnesota, a city * Savage, Mi ...

: 776 * Scobey: 487, 688 * Scobey rural: 783 * Seeley Lake: 210, 499, 677 * Shelby: 424, 434, 450, 460, 470, 597, 966 * Sheridan: 842 * Sidney: 433, 478, 480, 482, 488, 489, 630, 943, 973 * Silvertip: 574, 840 * Somers: 393, 857 * South Alberton: 864 * South Broadus: 427 * South Chester: 456 * South Miles City: 421, 981 * South Havre: 390, 395, 399 * South Malta: 658 * South Wolf Point: 525, 915 *

Stanford Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is considere ...

: 566 * Stevensville: 625, 777 * Stockett: 736 * Saint Regis: 269, 280, 649 *

Sunburst A sunburst is a design or figure commonly used in architectural ornaments and design patterns and possibly pattern books. It consists of rays or "beams" radiating out from a central disk in the manner of sunbeams. Sometimes part of a sunbur ...

: 561, 937 * Superior: 382, 515, 822 *

Swan Lake ''Swan Lake'' ( rus, Лебеди́ное о́зеро, r=Lebedínoye ózero, p=lʲɪbʲɪˈdʲinəjə ˈozʲɪrə, link=no ), Op. 20, is a ballet composed by Russian composer Pyotr Ilyich Tchaikovsky in 1875–76. Despite its initial failur ...

: 612, 886 * Sweetgrass: 335 *

Terry Terry is a unisex given name, derived from French Thierry and Theodoric. It can also be used as a diminutive nickname for the names Teresa or Theresa (feminine) or Terence (given name), Terence or Terrier (masculine). People Male * Terry Albrit ...

: 635, 637, 957 * Thompson Falls: 242, 615, 827 * Three Forks: 285, 616 *

Townsend Townsend (pronounced tounʹ-zənd) or Townshend may refer to: Places United States *Camp Townsend, National Guard training base in Peekskill, New York *Townsend, Delaware *Townsend, Georgia *Townsend, Massachusetts, a New England town ** Townsend ...

: 266, 521, 949, 980 *

Troy Troy ( el, Τροία and Latin: Troia, Hittite language, Hittite: 𒋫𒊒𒄿𒊭 ''Truwiša'') or Ilion ( el, Ίλιον and Latin: Ilium, Hittite language, Hittite: 𒃾𒇻𒊭 ''Wiluša'') was an ancient city located at Hisarlik in prese ...

: 295 *

Turner Turner may refer to: People and fictional characters *Turner (surname), a common surname, including a list of people and fictional characters with the name * Turner (given name), a list of people with the given name *One who uses a lathe for turni ...

: 379 *

Twin Bridges Twin bridges are a set of two bridges running parallel to each other. A pair of twin bridges is often referred to collectively as a twin-span or dual-span bridge. Twin bridges are independent structures and each bridge has its own superstructur ...

: 684 * Valier: 279 *

Victor The name Victor or Viktor may refer to: * Victor (name), including a list of people with the given name, mononym, or surname Arts and entertainment Film * ''Victor'' (1951 film), a French drama film * ''Victor'' (1993 film), a French shor ...

: 642 *

Virginia City Virginia City is a census-designated place (CDP) that is the county seat of Storey County, Nevada, and the largest community in the county. The city is a part of the Reno– Sparks Metropolitan Statistical Area. Virginia City developed as a boom ...

: 843 * Valley Industrial Park: 524 * Warm Springs: 693 *

West Beach West Beach may refer to: ;Australia *West Beach, South Australia West Beach is a seaside suburb of Adelaide, South Australia. It is located in both the City of Charles Sturt and the City of West Torrens. History West Beach was first laid out in ...

: 877 * Westby: 385 * West Camp Crook: 972 * West Glacier: 888 * West Glendive: 687, 939, 941, 989 * West Sidney: 798 * West Squaw Gap: 569 *

West Yellowstone West Yellowstone is a town in Gallatin County, Montana, United States, adjacent to Yellowstone National Park. The population was 1,272 at the 2020 census. West Yellowstone is served by Yellowstone Airport. It is part of the Bozeman, MT Micropoli ...

: 640, 641, 646 * Whitefish: 730, 862, 863 *

Whitehall Whitehall is a road and area in the City of Westminster, Central London. The road forms the first part of the A roads in Zone 3 of the Great Britain numbering scheme, A3212 road from Trafalgar Square to Chelsea, London, Chelsea. It is the main ...

: 287 *

Whitewater Whitewater forms in a rapid context, in particular, when a river's gradient changes enough to generate so much turbulence that air is trapped within the water. This forms an unstable current that froths, making the water appear opaque and ...

: 674 * White Sulphur Springs: 305, 547 * Wibaux: 795, 796 * Wilsall: 578 * Winifred: 462 * Winnett: 429 *

Wisdom Wisdom, sapience, or sagacity is the ability to contemplate and act using knowledge, experience, understanding, common sense and insight. Wisdom is associated with attributes such as unbiased judgment, compassion, experiential self-knowledge, ...

: 689 * Wise River: 832 * Wolf Creek: 235, 302 *

Wolf Point Wolf Point ( asb, šųktógeja oʾípa) is an incorporated ranchingtown in, and the county seat of, Roosevelt County, Montana, United States. The population was 2,517 at the 2020 census, down 4% from 2,621 in the 2010 Census. It is the larges ...

: 650, 653 * Worden: 967 * Wyola: 343 * Yellow Bay: 692, 982 * Premium numbers: (1-406) 976

Use by Google

On December 10, 2008,

Google Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. ...

Gmail Gmail is a free email service provided by Google. As of 2019, it had 1.5 billion active users worldwide. A user typically accesses Gmail in a web browser or the official mobile app. Google also supports the use of email clients via the POP an ...

Blog announced that

SMS Short Message/Messaging Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile devices exchange short text ...

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 for replies or future use. Google also employs the use of area code 406 for the assignment of reply-to or callback numbers for

Google Voice Google Voice is a telephone service that provides a U.S. phone number to Google Account customers in the U.S. and Google Workspace (G Suite by October 2020) customers in Canada, Denmark, France, the Netherlands, Portugal, Spain, Sweden, Switz ...

's customers' contacts.

Exchanges in area code 406

Use by Google

References

See also