Phone numbers in Denham Springs, Louisiana
Denham Springs has 21 phone prefixes in area code 225.
Biggest holders: Onvoy, AT&T (local phone), Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 10%
- Local phone company 19%
- Internet / business phone carrier 67%
- Phone company 5%
Every prefix in Denham Springs
Search the first six digits of a number in this list. If it's here, the number started in Denham Springs with the carrier shown. If it isn't, check the Louisiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 225-233 | Onvoy | Internet / business phone carrier | 2024 |
| 225-243 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 225-271 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 225-304 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 225-305 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 225-347 | Level 3 (Lumen) | Internet / business phone carrier | 2010 |
| 225-369 | Teleport Communications America La | Internet / business phone carrier | 2008 |
| 225-380 | AT&T Enterprises | Phone company | 2014 |
| 225-453 | Bandwidth | Internet / business phone carrier | 2021 |
| 225-480 | AT&T Mobility | Mobile carrier | 2016 |
| 225-503 | Bandwidth | Internet / business phone carrier | 2015 |
| 225-523 | Onvoy | Internet / business phone carrier | 2017 |
| 225-527 | Nuso | Internet / business phone carrier | – |
| 225-534 | Onvoy | Internet / business phone carrier | 2024 |
| 225-550 | Onvoy | Internet / business phone carrier | 2026 |
| 225-664 | AT&T (local phone) | Local phone company | – |
| 225-665 | AT&T (local phone) | Local phone company | – |
| 225-667 | AT&T (local phone) | Local phone company | – |
| 225-788 | AT&T Mobility | Mobile carrier | 2006 |
| 225-791 | AT&T (local phone) | Local phone company | – |
| 225-998 | Onvoy | Internet / business phone carrier | 2016 |
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.