Phone numbers in Willis, Texas
Willis has 10 phone prefixes in area code 936.
Biggest holders: Frontier, Onvoy, Bandwidth. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 10%
- Local phone company 30%
- Internet / business phone carrier 60%
Every prefix in Willis
Search the first six digits of a number in this list. If it's here, the number started in Willis with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 936-228 | Frontier | Local phone company | 2002 |
| 936-249 | Onvoy | Internet / business phone carrier | 2016 |
| 936-272 | Bandwidth | Internet / business phone carrier | 2017 |
| 936-338 | MetroPCS (T-Mobile) | Mobile carrier | 2022 |
| 936-403 | Onvoy | Internet / business phone carrier | 2024 |
| 936-506 | Peerless Network Of Texas | Internet / business phone carrier | 2004 |
| 936-666 | Bandwidth | Internet / business phone carrier | 2010 |
| 936-701 | Csc Voice | Internet / business phone carrier | 2014 |
| 936-856 | Frontier | Local phone company | – |
| 936-890 | Frontier | 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.