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AREA CODE · TEXAS

Area code 210

Area code 210 covers San Antonio, Texas. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Texas Major City: San Antonio Central Time (CT) Overlay: 210/726
01 / WHERE IT IS

Where is area code 210?

Area code 210 is assigned to San Antonio and the surrounding region in Texas. Calls to numbers that start with 210 are routed to this area.

Area code 210 shares its territory with 726. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Bexar County

Line types

  • Mobile 34.95%
  • Landline 65.05%
02 / MAP

Area code 210 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in San Antonio

This area code is in the Central Time (CT) time zone.

Local timeSan Antonio, TX--:--:--

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America/ChicagoLive
04 / HOW TO DIAL

How to call San Antonio

WITHIN THE US210 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 210 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 210 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 210 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 210 555 0123
🇦🇺Australia0011 1 210 555 0123
🇯🇵Japan010 1 210 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 210

Share of the number blocks by carrier and line type.

Landline

AT&T
59%
Verizon Business
8%
Lumen Technologies
7%
Metro by T-Mobile
7%
Sinch
7%
Others
12%

Mobile

AT&T Mobility
47%
T-MOBILE USA
25%
Verizon Wireless
20%
USA Mobility
7%
Sinch
1%
Others
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 210

784 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(210) 200 Landline San Antonio AT&TAT&T - LOCAL
(210) 201 Landline San Antonio AT&TSOUTHWESTERN BELL
(210) 202 Mobile San Antonio Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
(210) 203 Mobile San Antonio USA MobilityAMERICAN MESSAGING SERVICES, LLC
(210) 204 Mobile San Antonio T-MOBILE USAT-MOBILE USA, INC.
(210) 205 Mobile San Antonio USA MobilityAMERICAN MESSAGING SERVICES, LLC
(210) 206 Landline San Antonio AT&TSOUTHWESTERN BELL
(210) 207 Landline San Antonio AT&TSOUTHWESTERN BELL
(210) 208 Landline San Antonio AT&TSOUTHWESTERN BELL
(210) 209 Mobile San Antonio AT&T MobilityNEW CINGULAR WIRELESS PCS, LLC - IL

Showing 10 of 784 prefixes

07 / FAQ

Frequently asked questions about area code 210

Where is area code 210 used?
Area code 210 serves San Antonio and the surrounding area in Texas, including Bexar County.
What city is area code 210 from?
The main city of area code 210 is San Antonio, TX.
What time zone is area code 210 in?
Area code 210 is in the Central Time (CT) time zone (America/Chicago).
Is 210 an overlay area code?
Yes. It shares its territory with 726. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 210 from the United States?
Dial the 10 digits: 210 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 210 number from another country?
Dial your country's exit code (or +), then 1, then 210 and the seven-digit number. From a mobile you can use +1 210 XXX XXXX.
Which carriers use area code 210?
Most landline blocks belong to AT&T and most mobile blocks to AT&T Mobility. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 210 for landlines, mobiles or both?
Both. About 65.05% of the number blocks are landline, 34.95% mobile.
How do I save a 210 number in WhatsApp or my phone?
Save it in international format: +1 210 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 210?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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Other area codes in Texas

214 · Dallas254 · Waco281 · Houston325 · Abilene346 · Houston361 · Corpus Christi409 · Beaumont430 · Longview432 · Terminal469 · Dallas512 · Austin682 · Arlington713 · Houston726 · San Antonio737 · Austin806 · Lubbock817 · Fort Worth830 · New Braunfels832 · Houston903 · Tyler915 · El Paso936 · Conroe940 · Wichita Falls945 · Grand Prairie956 · Laredo972 · Dallas979 · Bryan-College Station

View all Texas area codes →