Phone numbers in Fredericksburg, Texas
Fredericksburg has 14 phone prefixes in area code 830.
Biggest holders: AT&T Mobility, Frontier, Spok. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 43%
- Local phone company 29%
- Internet / business phone carrier 14%
- Paging service 7%
- Phone company 7%
Every prefix in Fredericksburg
Search the first six digits of a number in this list. If it's here, the number started in Fredericksburg with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 830-207 | Spok | Paging service | 2003 |
| 830-304 | Hill Country Telecommunications | Phone company | 2011 |
| 830-307 | AT&T Mobility | Mobile carrier | 2009 |
| 830-342 | AT&T Mobility | Mobile carrier | – |
| 830-362 | Onvoy | Internet / business phone carrier | 2021 |
| 830-383 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 830-430 | Twilio | Internet / business phone carrier | 2023 |
| 830-456 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 830-733 | Windstream Communications Telecom | Local phone company | 2005 |
| 830-889 | AT&T Mobility | Mobile carrier | – |
| 830-990 | Frontier | Local phone company | – |
| 830-992 | Frontier | Local phone company | – |
| 830-997 | Frontier | Local phone company | – |
| 830-998 | 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.