210 Area Code

The 210 area code is serving San Antonio and most of its innermost suburbs in Bexar County in Texas.

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Area Code 210 Location: Texas

Area codes 210 and 726 serve most of Bexar and small portions of Atascosa, Comal, Guadalupe, Medina, and Wilson counties.

Counties Served by Area Code 210:

  • Atascosa County
  • Bexar County
  • Comal County
  • Guadalupe County
  • Medina County
  • Wilson County

Major Cities in the 210 Service Area:

  • San Antonio
  • Alamo Heights
  • Castle Hills
  • Converse
  • Helotes
  • Kirby
  • Olmos Park
  • Schertz
  • Terrell Hills
  • Universal City
  • Windcrest

Other Cities and Towns:

  • Adkins
  • Artesia Wells
  • Atascosa
  • Cibolo
  • Ecleto
  • Elmendorf
  • Leon Springs
  • Macdona
  • Saint Hedwig
  • Shavano Park
  • Von Ormy
  • Wetmore

Overlay System

Area code 210 is overlaid by area code 726. Area code 210 was created in 1992, and area code 726 was activated in 2017. Ten-digit dialing is mandatory in this region.

Area Code 210 Location Map

Area Code 210 Location on Texas Map

Area code 210 is a general purpose code which was placed in service on November 1, 1992.

210 Area Code Prefixes

Our Texas phone number lookup service will analyze the three-digit prefix of any 210 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Texas geographic region, and local calling area associated with the phone number.

Phone numbers follow the following structure under the North American Numbering Plan:

  • NPA- area code (where the number was originally assigned)
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

Prefixes by Company

Company Number of Prefixes
SOUTHWESTERN BELL 277
NEW CINGULAR WIRELESS PCS, LLC - IL 127
SPRINT SPECTRUM, L.P. 52
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 49
T-MOBILE USA, INC. 41
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 32
LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 21
BANDWIDTH.COM CLEC, LLC - TX 15
LEVEL 3 COMMUNICATIONS, LLC - TX 15
USA MOBILITY WIRELESS, INC. 10
ONVOY, LLC - TX 9
AT&T CORP. 7
METROPCS, INC. 6
TELEPORT COMMUNICATIONS AMERICA, LLC - TX 6
TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 6
AT&T - LOCAL 5
CAPROCK TELECOMMUNICATIONS CORP. - TX 5
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 5
GRANDE COMMUNICATIONS NETWORKS, INC. - TX 4
LOGIX COMMUNICATIONS CORPORATION - TX 3
PEERLESS NETWORK OF TEXAS, LLC - TX 3
XO TEXAS, INC. 3
AMERICAN MESSAGING SERVICES, LLC 2
FOREMOST TELECOMMUNICATIONS CORPORATION - TX 2
IONEX COMMUNICATIONS SOUTH, INC. - TX 2
MATRIX TELECOM, LLC. S/I/I TNCI - TX 2
AIRUS, INC. - TX 1
CENTURYLINK COMMUNICATIONS, LLC 1
COMMIO, LLC 1
INTRADO COMMUNICATIONS, LLC 1
LOCAL ACCESS LLC - TX 1
NUSO, LLC 1
ONVOY SPECTRUM, LLC 1
RCLEC, INC. - TX 1
USFON, INC. - TX 1
VONAGE AMERICA LLC 1
WESTEL, INC. - TX 1
WORLDCALL INTERCONNECT INC. 1
YMAX COMMUNICATIONS CORP. - TX 1

Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.

Prefixes by Rate Center

Rate Center Number of Prefixes
SANANTONIO 722

Other Texas Area Codes

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