512 and 737 are North American telephone

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 ...

s serving

Austin, Texas Austin is the capital city of the U.S. state of Texas, as well as the county seat, seat and largest city of Travis County, Texas, Travis County, with portions extending into Hays County, Texas, Hays and Williamson County, Texas, Williamson co ...

, and its suburbs. Counties currently served by these area codes include Bastrop, Burnet,

Caldwell Caldwell may refer to: People * Caldwell (surname) * Caldwell (given name) * Caldwell First Nation, a federally recognized Indian band in southern Ontario, Canada Places Great Britain * Caldwell, Derbyshire, a hamlet * Caldwell, East ...

, Hays, Travis, Milam and Williamson. Area code 512 was one of the

original area codes The original North American area codes were established by the American Telephone & Telegraph Company (AT&T) in 1947, following the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speedin ...

established in October 1947. At that time it covered most of the south-central portion of Texas, from the

Gulf of Mexico The Gulf of Mexico ( es, Golfo de México) is an oceanic basin, ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of ...

to the

Mexican Mexican may refer to: Mexico and its culture *Being related to, from, or connected to the country of Mexico, in North America ** People *** Mexicans, inhabitants of the country Mexico and their descendants *** Mexica, ancient indigenous people ...

border. Besides Austin, it included

San Antonio ("Cradle of Freedom") , image_map = , mapsize = 220px , map_caption = Interactive map of San Antonio , subdivision_type = Country , subdivision_name = United States , subdivision_type1= U.S. state, State , subdivision_name1 = Texas , s ...

, Corpus Christi, Brownsville, Harlingen, and

McAllen McAllen is the largest city in Hidalgo County, Texas, United States, and the 22nd-most populous city in Texas. It is located at the southern tip of the state in the Rio Grande Valley, on the Mexico–United States border. The city limits extend ...

. Despite the presence of San Antonio and Austin—the state's third- and fourth-largest cities, respectively, for most of the second half of the 20th century—this configuration remained in place for 45 years. In 1992, the western part of its territory, including San Antonio and the Rio Grande Valley, became

area code 210 Area codes 210 and 726 are area codes for telephone numbers in the North American Numbering Plan (NANP) in and near San Antonio, Texas. Area code 210 was created in an area code split from number plan area 512 in 1992. After only a few years, ...

, making 512 the last of Texas' original four area codes to be split. Typically, the largest city in an existing area code keeps the original code, which in this case would have been San Antonio. However, state regulators decided that having the Austin area keep 512 would spare the large number of state agencies in and around the state capital from the expense and disruption of changing their numbers. On February 13, 1999, the 512 area code was reduced to its current size when the southern portion (including Corpus Christi) became 361. To stave off exhaustion by the end of 2013, area code 737 was introduced as an

overlay Overlay may refer to: Computers *Overlay network, a computer network which is built on top of another network *Hardware overlay, one type of video overlay that uses memory dedicated to the application *Another term for exec, replacing one process ...

of 512 in July 2013.

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 ...

within the 512 territory was phased in beginning December 2012 and made mandatory since June 2013.

Service area

Area codes 512 and 737 serve the following municipalities: *

Austin Austin is the capital city of the U.S. state of Texas, as well as the seat and largest city of Travis County, with portions extending into Hays and Williamson counties. Incorporated on December 27, 1839, it is the 11th-most-populous city ...

* Bastrop * Bee Cave * Bertram * Briggs *

Buchanan Dam The Buchanan Dam () is a multiple arch dam located on the Colorado River of Texas. The dam forms Lake Buchanan and was the first dam to be completed in the chain of Texas Highland Lakes. The dam is used for generating hydroelectric power and ...

Buda Buda (; german: Ofen, sh-Latn-Cyrl, separator=" / ", Budim, Будим, Czech and sk, Budín, tr, Budin) was the historic capital of the Kingdom of Hungary and since 1873 has been the western part of the Hungarian capital Budapest, on the ...

* Burnet * Cedar Creek * Cedar Park * Coupland * Dale * Del Valle *

Driftwood __NOTOC__ Driftwood is wood that has been washed onto a shore or beach of a sea, lake, or river by the action of winds, tides or waves. In some waterfront areas, driftwood is a major nuisance. However, the driftwood provides shelter and fo ...

* Dripping Springs * Elgin * Fentress * Georgetown *

Granger Granger may refer to: People *Granger (name) *Hermione Granger, a fictional character in Harry Potter United States * Granger, Indiana * Granger, Iowa * Granger, Minnesota * Granger, Missouri * Granger, New York * Granger, Ohio * Granger, Texas ...

Hutto Hutto is a city in Williamson County, Texas, United States. It is part of the Greater Austin, Austin–Round Rock metropolitan area. The population was 27,577 at the 2020 census. Geography Hutto is located at (30.544517, −97.545198), about sev ...

* Jarrell * Kempner *

Kyle Kyle or Kyles may refer to: Places Canada * Kyle, Saskatchewan, Canada Ireland * Kyle, County Laois * Kyle, County Wexford Scotland * Kyle, Ayrshire, area of Scotland which stretched across parts of modern-day East Ayrshire and South Ayrshir ...

* Lakeway *

Lampasas Lampasas ( ) is a city in Lampasas County, Texas, United States. Its population was 7,291 at the 2020 census. It is the seat of Lampasas County. Lampasas is part of the Killeen–Temple–Fort Hood metropolitan statistical area. History ...

Leander Leander is one of the protagonists in the story of Hero and Leander in Greek mythology. Leander may also refer to: People * Leander (given name) * Leander (surname) Places * Leander, Kentucky, United States, an unincorporated community * Le ...

* Liberty Hill *

Lockhart Lockhart may refer to: *Lockhart (surname) Places Australia *Lockhart, New South Wales *Lockhart River, Queensland *Lockhart River, Western Australia United States *Lockhart, Alabama *Lockhart, Florida *Lockhart, Minnesota *Lockhart, Sout ...

* Lometa * Manchaca * Manor * Martindale * Maxwell * McDade * McNeil * Muldoon *

Pflugerville Pflugerville ( ) is a city in Travis County, Texas, United States, with a small portion in Williamson County. The population was 65,191 at the 2020 census. Pflugerville is a suburb of Austin and part of the Austin–Round Rock–San Mar ...

* Prairie Lea * Rockdale *

Round Rock Round Rock is a city in the U.S. state of Texas, in Williamson County, Texas, Williamson County (with a small part in Travis County, Texas, Travis County), which is a part of the Greater Austin metropolitan area. Its population is 119,468 as of ...

San Marcos San Marcos is the Spanish name of Saint Mark. It may also refer to: Towns and cities Argentina * San Marcos, Salta Colombia * San Marcos, Antioquia * San Marcos, Sucre Costa Rica * San Marcos, Costa Rica (aka San Marcos de Tarrazú) ...

* Smithville *

Spicewood Spicewood is an unincorporated community in Travis County and partially in Burnet County, Texas, United States. According to the Texas Almanac, the community had an estimated population of 2,000 in 2000. But in the 2011 census, the community had a ...

* Staples *

Taylor Taylor, Taylors or Taylor's may refer to: People * Taylor (surname) **List of people with surname Taylor * Taylor (given name), including Tayla and Taylah * Taylor sept, a branch of Scottish clan Cameron * Justice Taylor (disambiguation) Plac ...

* Thorndale *

Thrall A thrall ( non, þræll, is, þræll, fo, trælur, no, trell, træl, da, træl, sv, träl) was a slave or serf in Scandinavian lands during the Viking Age. The corresponding term in Old English was . The status of slave (, ) contrasts with ...

* Walburg *

Weir A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of l ...

* Wimberley

In popular culture

In January 1995,

Selena Quintanilla Selena Quintanilla Pérez (; April 16, 1971 – March 31, 1995), known mononymously as Selena, was an American Tejano singer. Called the " Queen of Tejano music", her contributions to music and fashion made her one of the most celebrated Mex ...

released "

El Chico del Apartamento 512 "El Chico del Apartamento 512" (English: The boy from Apartment 512) is a song recorded by American recording artist Selena for her fourth studio album, ''Amor Prohibido'' (1994). It was released along with "Fotos y Recuerdos" in January 1995, s ...

" (The Guy from Apartment 512). The "512" is a reference to the city of

Corpus Christi, Texas Corpus Christi (; Ecclesiastical Latin: "'' Body of Christ"'') is a coastal city in the South Texas region of the U.S. state of Texas and the county seat and largest city of Nueces County, it also extends into Aransas, Kleberg, and San Patrici ...

' former area code.

References

External links

List of exchanges from AreaCodeDownload.com, 512 Area Code
{{DEFAULTSORT:Area Code 512 512 512

Service area

In popular culture

See also

References

External links