Phone numbers in Marathon, Texas
Marathon has 4 phone prefixes in area code 432.
Biggest holders: AT&T Mobility, Big Bend Telecom, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 25%
- Phone company 25%
Every prefix in Marathon
Search the first six digits of a number in this list. If it's here, the number started in Marathon with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 432-216 | Big Bend Telecom | Phone company | 2014 |
| 432-244 | AT&T Mobility | Mobile carrier | 2010 |
| 432-321 | AT&T Mobility | Mobile carrier | 2023 |
| 432-386 | AT&T (local phone) | Local phone company | – |
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.