Texas, United States
Central Time
12:23 AM
Area Code
210
State / Province
Texas
Country
United States
Time Zone
Central Time
Area code 210 covers 1 city and community across Texas, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+12105550100">+12105550100</a><a href="tel:+12105550199">+12105550199</a>Look up which exchange in Texas a specific 210 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
784 active prefixes in this area code, assigned as 6,374 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 6,374
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 210-200 | 0 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 1 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 2 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 3 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 4 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 5 | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-200 | 6 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-200 | 7 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-200 | 8 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-200 | 9 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-200 | A | San Antonio | Landline or VoIP | AT&T - LOCAL (7421) | SAN ANTONIO | 566 | — | — |
| 210-201 | 0 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 1 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 2 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 3 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 4 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 5 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 6 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 7 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-201 | 8 | San Antonio | Landline or VoIP | PAETEC ITEL, LLC (829J) | SNANTXEW0MD | 566 | — | — |
| 210-201 | 9 | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CULEBRA 1 | 566 | — | — |
| 210-201 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CULEBRA 1 | 566 | — | — |
| 210-202 | 0 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-202 | 1 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-202 | 2 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-202 | 3 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-202 | 4 | San Antonio | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - TX (004F) | SNANTXCA34Z | 566 | — | — |
| 210-202 | 5 | San Antonio | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | SAN ANTIONIO | 566 | — | — |
| 210-202 | 6 | San Antonio | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (6506) | SNANTX39TMD | 566 | — | — |
| 210-202 | 7 | San Antonio | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (6506) | SNANTX39TMD | 566 | — | — |
| 210-202 | 8 | San Antonio | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (6506) | SNANTX39TMD | 566 | — | — |
| 210-202 | 9 | San Antonio | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (6506) | SNANTX39TMD | 566 | — | — |
| 210-202 | A | San Antonio | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (6506) | SNANTX39TMD | 566 | — | — |
| 210-203 | A | San Antonio | Wireless | AMERICAN MESSAGING SERVICES, LLC (9748) | SNANTXCA40Z | 566 | — | — |
| 210-204 | 0 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 1 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 2 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 3 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 4 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 5 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 6 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 7 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 8 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | 9 | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-204 | A | San Antonio | Wireless | T-MOBILE USA, INC. (6529) | SNANTX91X7Y | 566 | — | — |
| 210-205 | A | San Antonio | Wireless | AMERICAN MESSAGING SERVICES, LLC (9748) | SNANTXCA40Z | 566 | — | — |
| 210-206 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CAPITOL 2 | 566 | — | — |
| 210-207 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CAPITOL 2 | 566 | — | — |
| 210-208 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CAPITOL 2 | 566 | — | — |
| 210-209 | 0 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 1 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 2 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 3 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 4 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 5 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 6 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 7 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-209 | 8 | San Antonio | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - TX (6114) | SNAQTXKY7MD | 566 | — | — |
| 210-209 | 9 | San Antonio | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - TX (6114) | SNAQTXKY7MD | 566 | — | — |
| 210-209 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-210 | 0 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 1 | San Antonio | Wireless | ONVOY SPECTRUM, LLC (624H) | SNANTXCA80Z | 566 | — | — |
| 210-210 | 2 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 3 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 4 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 5 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 6 | San Antonio | Wireless | ONVOY SPECTRUM, LLC (624H) | SNANTXCA80Z | 566 | — | — |
| 210-210 | 7 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 8 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | 9 | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-210 | A | San Antonio | Landline or VoIP | USFON, INC. - TX (473F) | SNAOTXWC0MD | 566 | — | — |
| 210-212 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CAPITOL 3 | 566 | — | — |
| 210-213 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 0 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 1 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 2 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 3 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 4 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 5 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 6 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 7 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 8 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | 9 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-214 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-215 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 0 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 1 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 2 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 3 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 4 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 5 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 6 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 7 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 8 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | 9 | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-216 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-217 | A | San Antonio | Wireless | AMERICAN MESSAGING SERVICES, LLC (9748) | SNANTXCA40Z | 566 | — | — |
| 210-218 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-219 | A | San Antonio | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SAN ANTONIO | 566 | — | — |
| 210-220 | A | San Antonio | Landline | SOUTHWESTERN BELL (9533) | SAN ANTONIO CAPITOL 3 | 566 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
784
Assignment Blocks
6,374
Rate Centers
1
Carriers of Record
38
| Type | Blocks | Share |
|---|---|---|
| Landline | 1,320 | 21% |
| Landline or VoIP | 2,271 | 36% |
| Wireless | 2,783 | 44% |
| Carrier | Blocks |
|---|---|
| SOUTHWESTERN BELL | 1,320 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 1,202 |
| T-MOBILE USA, INC. | 1,160 |
| ONVOY, LLC - TX | 441 |
| BANDWIDTH.COM CLEC, LLC - TX | 389 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 368 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 335 |
| METROPCS, INC. | 210 |
| TWC IP ENABLED SERVICES, LLC | 205 |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 182 |
| 28 other carriers | 562 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| San Antonio | 784 | 6,374 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 210 is a North American Numbering Plan (NANP) telephone area code assigned to Texas, United States. It is one of 29 area codes serving Texas. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 210 is an active North American Numbering Plan (NANP) area code, currently assigned to Texas, United States. It is safe to answer or dial calls using this area code.
Area code 210 covers 1 city and community in Texas, including San Antonio. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 210 area code observe Central Time (IANA timezone: America/Chicago). Central Time is UTC−6 in winter (CST) and UTC−5 in summer (CDT). When placing a call to a 210 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Texas, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 210 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 210 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 210 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +12105550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.