Phone numbers in Pleasanton, California
Pleasanton has 76 phone prefixes in area code 925.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 28%
- Local phone company 37%
- Internet / business phone carrier 33%
- Paging service 1%
- Phone company 1%
Every prefix in Pleasanton
Search the first six digits of a number in this list. If it's here, the number started in Pleasanton with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 925-200 | Verizon Wireless | Mobile carrier | – |
| 925-201 | Tpx Communications | Internet / business phone carrier | – |
| 925-202 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-209 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-218 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-223 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-224 | AT&T (local phone) | Local phone company | – |
| 925-225 | AT&T (local phone) | Local phone company | – |
| 925-226 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-227 | AT&T (local phone) | Local phone company | – |
| 925-249 | AT&T (local phone) | Local phone company | – |
| 925-251 | AT&T (local phone) | Local phone company | – |
| 925-264 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-271 | Teleport Communications America | Internet / business phone carrier | – |
| 925-343 | American Messaging Services | Paging service | – |
| 925-351 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-352 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-353 | AT&T Mobility | Mobile carrier | 2002 |
| 925-366 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-367 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-368 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-379 | Level 3 (Lumen) | Internet / business phone carrier | 2014 |
| 925-396 | Onvoy | Internet / business phone carrier | – |
| 925-397 | Onvoy | Internet / business phone carrier | – |
| 925-398 | Teleport Communications America | Internet / business phone carrier | – |
| 925-399 | Comcast | Internet / business phone carrier | – |
| 925-400 | Bandwidth | Internet / business phone carrier | – |
| 925-401 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-410 | Tpx Communications | Internet / business phone carrier | 2020 |
| 925-416 | AT&T (local phone) | Local phone company | – |
| 925-417 | AT&T (local phone) | Local phone company | – |
| 925-425 | Teleport Communications America | Internet / business phone carrier | – |
| 925-426 | AT&T (local phone) | Local phone company | – |
| 925-460 | AT&T (local phone) | Local phone company | – |
| 925-461 | AT&T (local phone) | Local phone company | – |
| 925-462 | AT&T (local phone) | Local phone company | – |
| 925-463 | AT&T (local phone) | Local phone company | – |
| 925-467 | AT&T (local phone) | Local phone company | – |
| 925-468 | AT&T (local phone) | Local phone company | – |
| 925-469 | AT&T (local phone) | Local phone company | – |
| 925-474 | Tpx Communications | Internet / business phone carrier | – |
| 925-475 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 925-484 | AT&T (local phone) | Local phone company | – |
| 925-485 | AT&T (local phone) | Local phone company | – |
| 925-519 | Verizon Wireless | Mobile carrier | – |
| 925-520 | AT&T (local phone) | Local phone company | – |
| 925-523 | AT&T (local phone) | Local phone company | – |
| 925-535 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 925-572 | North County Communication | Phone company | – |
| 925-580 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-596 | Verizon Wireless | Mobile carrier | – |
| 925-598 | AT&T (local phone) | Local phone company | – |
| 925-600 | AT&T (local phone) | Local phone company | – |
| 925-621 | Tpx Communications | Internet / business phone carrier | 2001 |
| 925-623 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-660 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-694 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-699 | AT&T Mobility | Mobile carrier | – |
| 925-701 | Tpx Communications | Internet / business phone carrier | – |
| 925-730 | AT&T (local phone) | Local phone company | – |
| 925-734 | AT&T (local phone) | Local phone company | – |
| 925-737 | AT&T (local phone) | Local phone company | – |
| 925-738 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-750 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-846 | AT&T (local phone) | Local phone company | – |
| 925-847 | AT&T (local phone) | Local phone company | – |
| 925-872 | Verizon Wireless | Mobile carrier | – |
| 925-892 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 925-918 | Verizon Wireless | Mobile carrier | – |
| 925-922 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 925-924 | AT&T (local phone) | Local phone company | – |
| 925-931 | AT&T (local phone) | Local phone company | – |
| 925-963 | AT&T Mobility | Mobile carrier | – |
| 925-965 | Teleport Communications America | Internet / business phone carrier | – |
| 925-989 | Verizon Wireless | Mobile carrier | – |
| 925-998 | AT&T Mobility | Mobile carrier | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.