Phone numbers in Mangham, Louisiana
Mangham has 4 phone prefixes in area code 318.
Biggest holders: Onvoy, Brightspeed Of Louisiana, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Internet / business phone carrier 50%
Every prefix in Mangham
Search the first six digits of a number in this list. If it's here, the number started in Mangham with the carrier shown. If it isn't, check the Louisiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 318-248 | Brightspeed Of Louisiana | Local phone company | – |
| 318-333 | Onvoy | Internet / business phone carrier | 2019 |
| 318-477 | AT&T Mobility | Mobile carrier | 2004 |
| 318-913 | Onvoy | Internet / business phone carrier | 2022 |
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.