Phone numbers in Porter, Texas
Porter has 11 phone prefixes in area codes 281, 346, 832.
Biggest holders: Brightspeed Of Texas, AT&T Mobility, Grande Communications Networks. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 18%
- Local phone company 27%
- Internet / business phone carrier 45%
- Phone company 9%
Every prefix in Porter
Search the first six digits of a number in this list. If it's here, the number started in Porter with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 281-354 | Brightspeed Of Texas | Local phone company | – |
| 281-577 | Brightspeed Of Texas | Local phone company | – |
| 281-601 | Grande Communications Networks | Phone company | – |
| 281-747 | Brightspeed Of Texas | Local phone company | 2001 |
| 346-261 | AT&T Mobility | Mobile carrier | 2017 |
| 346-423 | Comcast | Internet / business phone carrier | 2020 |
| 346-736 | Vonage America | Internet / business phone carrier | 2023 |
| 346-782 | TON80 Communications | Internet / business phone carrier | 2022 |
| 346-931 | AT&T Mobility | Mobile carrier | 2026 |
| 346-966 | Fractel | Internet / business phone carrier | 2021 |
| 832-432 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
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.