Area code 210 With ZIP CODE (78101 – 78073)

Area code 210 is a North American telephone area code for numbers in and near San Antonio, Texas. It is an enclave area code, similar to area code 312 in Chicago, area code 213 in Los Angeles, area code 316 in Wichita, Kansas and area codes 385/801 in Salt Lake City, in that it is completely surrounded by area code 830.

Area code 210 With ZIP CODE (78101 - 78073)
Area code 210 With ZIP CODE 

It was created November 1, 1992, in a split from area code 512. Before that date, 512 had served the entire south-central portion of Texas since the area code system was instituted in 1947; 512 was the last of Texas’ original four area codes to be split.

The formation of 210 was intended to be a long-term solution in order to relieve exchanges in the Austin–San Antonio corridor. However, within four years 210 was already close to exhaustion because of San Antonio’s rapid growth and the popularity of cellular telephones and pagers. This forced a three-way split, which took place on July 7, 1997.

Most of Bexar County stayed in 210, while the San Antonio suburbs and the Texas Hill Country were split off as area code 830. The southern portion became area code 956. The 1997 split made San Antonio one of the few cities that are split between two area codes, as well as being the largest city in Texas where 7-digit dialling is still possible. Some portions of San Antonio located in Medina and Comal counties, as well as a few portions of Bexar County, are now in 830.

At this time, 210 is expected to exhaust once again by mid 2018, around which time an overlay of 210 (including the switch to ten-digit dialling) will be implemented. Planning for that new area code began in June 2015. The new overlay code will be 726.

CITY  – (COUNTY)ZIP CODESTATEAREA CODE
Adkins – (Bexar)78101Texas210
Atascosa – (Bexar)78002Texas210
Boerne – (Bexar)78015Texas210
Converse – (Bexar)78109Texas210
Elmendorf – (Bexar)78112Texas210
Helotes – (Bexar)78023Texas210
Macdona – (Bexar)78054Texas210
Saint Hedwig – (Bexar)78152Texas210
San Antonio – (Bexar)78201Texas210
San Antonio – (Bexar)78202Texas210
San Antonio – (Bexar)78203Texas210
San Antonio – (Bexar)78204Texas210
San Antonio – (Bexar)78205Texas210
San Antonio – (Bexar)78206Texas210
San Antonio – (Bexar)78207Texas210
San Antonio – (Bexar)78208Texas210
San Antonio – (Bexar)78209Texas210
San Antonio – (Bexar)78210Texas210
San Antonio – (Bexar)78211Texas210
San Antonio – (Bexar)78212Texas210
San Antonio – (Bexar)78213Texas210
San Antonio – (Bexar)78214Texas210
San Antonio – (Bexar)78215Texas210
San Antonio – (Bexar)78216Texas210
San Antonio – (Bexar)78217Texas210
San Antonio – (Bexar)78218Texas210
San Antonio – (Bexar)78219Texas210
San Antonio – (Bexar)78220Texas210
San Antonio – (Bexar)78221Texas210
San Antonio – (Bexar)78222Texas210
San Antonio – (Bexar)78223Texas210
San Antonio – (Bexar)78224Texas210
San Antonio – (Bexar)78225Texas210
San Antonio – (Bexar)78226Texas210
San Antonio – (Bexar)78227Texas210
San Antonio – (Bexar)78228Texas210
San Antonio – (Bexar)78229Texas210
San Antonio – (Bexar)78230Texas210
San Antonio – (Bexar)78231Texas210
San Antonio – (Bexar)78232Texas210
San Antonio – (Bexar)78233Texas210
San Antonio – (Bexar)78234Texas210
San Antonio – (Bexar)78235Texas210
San Antonio – (Bexar)78236Texas210
San Antonio – (Bexar)78237Texas210
San Antonio – (Bexar)78238Texas210
San Antonio – (Bexar)78239Texas210
San Antonio – (Bexar)78240Texas210
San Antonio – (Bexar)78241Texas210
San Antonio – (Bexar)78242Texas210
San Antonio – (Bexar)78243Texas210
San Antonio – (Bexar)78244Texas210
San Antonio – (Bexar)78245Texas210
San Antonio – (Bexar)78246Texas210
San Antonio – (Bexar)78247Texas210
San Antonio – (Bexar)78248Texas210
San Antonio – (Bexar)78249Texas210
San Antonio – (Bexar)78250Texas210
San Antonio – (Bexar)78251Texas210
San Antonio – (Bexar)78252Texas210
San Antonio – (Bexar)78253Texas210
San Antonio – (Bexar)78254Texas210
San Antonio – (Bexar)78255Texas210
San Antonio – (Bexar)78256Texas210
San Antonio – (Bexar)78257Texas210
San Antonio – (Bexar)78258Texas210
San Antonio – (Bexar)78259Texas210
San Antonio – (Bexar)78260Texas210
San Antonio – (Bexar)78261Texas210
San Antonio – (Bexar)78262Texas210
San Antonio – (Bexar)78263Texas210
San Antonio – (Bexar)78264Texas210
San Antonio – (Bexar)78265Texas210
San Antonio – (Bexar)78268Texas210
San Antonio – (Bexar)78269Texas210
San Antonio – (Bexar)78270Texas210
San Antonio – (Bexar)78275Texas210
San Antonio – (Bexar)78278Texas210
San Antonio – (Bexar)78279Texas210
San Antonio – (Bexar)78280Texas210
San Antonio – (Bexar)78283Texas210
San Antonio – (Bexar)78284Texas210
San Antonio – (Bexar)78285Texas210
San Antonio – (Bexar)78286Texas210
San Antonio – (Bexar)78287Texas210
San Antonio – (Bexar)78288Texas210
San Antonio – (Bexar)78289Texas210
San Antonio – (Bexar)78291Texas210
San Antonio – (Bexar)78292Texas210
San Antonio – (Bexar)78293Texas210
San Antonio – (Bexar)78294Texas210
San Antonio – (Bexar)78295Texas210
San Antonio – (Bexar)78296Texas210
San Antonio – (Bexar)78297Texas210
San Antonio – (Bexar)78298Texas210
San Antonio – (Bexar)78299Texas210
Somerset – (Bexar)78069Texas210
Universal City – (Bexar)78148Texas210
Universal City – (Bexar)78150Texas210
Von Ormy – (Bexar)78073Texas210