Phone numbers in Lampasas, Texas
Lampasas has 12 phone prefixes in area codes 512, 737.
Biggest holders: T-Mobile (including Sprint), AT&T (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 42%
- Local phone company 17%
- Internet / business phone carrier 42%
Every prefix in Lampasas
Search the first six digits of a number in this list. If it's here, the number started in Lampasas with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 512-525 | T-Mobile (including Sprint) | Mobile carrier | – |
| 512-540 | AT&T Mobility | Mobile carrier | – |
| 512-556 | AT&T (local phone) | Local phone company | – |
| 512-564 | AT&T (local phone) | Local phone company | 2002 |
| 512-566 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 512-734 | Verizon Wireless | Mobile carrier | – |
| 737-299 | Onvoy | Internet / business phone carrier | 2018 |
| 737-380 | Csc Voice | Internet / business phone carrier | 2024 |
| 737-386 | Fractel | Internet / business phone carrier | 2021 |
| 737-537 | Onvoy | Internet / business phone carrier | – |
| 737-618 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 737-767 | TON80 Communications | Internet / business phone carrier | 2021 |
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.