Area Code 210 at a Glance
| Area code | 210 |
| Region | San Antonio, TX |
| Country | United States |
| Primary timezone | America/Chicago |
| Dialing format | +1 (210) NXX-XXXX |
Frequently Asked Questions
Where is area code 210?
Area code 210 serves San Antonio, TX, United States.
Who is calling me from area code 210?
A call from area code 210 most likely originates from San Antonio, TX, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 210 number?
Within North America: dial 1-210 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 210 and the number.