Phone numbers in Milton, Florida
Milton has 14 phone prefixes in area code 850.
Biggest holders: AT&T (local phone), Onvoy, MetroPCS (T-Mobile). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 14%
- Local phone company 36%
- Internet / business phone carrier 50%
Every prefix in Milton
Search the first six digits of a number in this list. If it's here, the number started in Milton with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 850-313 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 850-365 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 850-400 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 850-564 | AT&T (local phone) | Local phone company | 2003 |
| 850-623 | AT&T (local phone) | Local phone company | – |
| 850-626 | AT&T (local phone) | Local phone company | – |
| 850-665 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 850-715 | Onvoy | Internet / business phone carrier | 2023 |
| 850-750 | Onvoy | Internet / business phone carrier | 2018 |
| 850-810 | Windstream (PAETEC) | Internet / business phone carrier | 2005 |
| 850-979 | Onvoy | Internet / business phone carrier | 2019 |
| 850-981 | AT&T (local phone) | Local phone company | – |
| 850-983 | AT&T (local phone) | Local phone company | – |
| 850-987 | Onvoy | Internet / business phone carrier | 2021 |
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.