Phone numbers in Prince Frederick, Maryland
Prince Frederick has 21 phone prefixes in area codes 410, 443, 667.
Biggest holders: Verizon Wireless, Verizon (local phone), T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 67%
- Local phone company 19%
- Internet / business phone carrier 14%
Every prefix in Prince Frederick
Search the first six digits of a number in this list. If it's here, the number started in Prince Frederick with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 410-414 | Verizon (local phone) | Local phone company | – |
| 410-474 | Verizon Wireless | Mobile carrier | – |
| 410-495 | Verizon (local phone) | Local phone company | – |
| 410-535 | Verizon (local phone) | Local phone company | – |
| 410-586 | Verizon (local phone) | Local phone company | – |
| 410-610 | Verizon Wireless | Mobile carrier | – |
| 443-295 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-432 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-486 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-532 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 443-624 | Verizon Wireless | Mobile carrier | 2002 |
| 443-684 | Verizon Wireless | Mobile carrier | 2008 |
| 443-771 | Verizon Wireless | Mobile carrier | 2010 |
| 443-968 | AT&T Mobility | Mobile carrier | – |
| 443-975 | AT&T Mobility | Mobile carrier | – |
| 667-301 | Verizon Wireless | Mobile carrier | 2021 |
| 667-321 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 667-404 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 667-453 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 667-486 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 667-546 | Verizon Wireless | Mobile carrier | 2026 |
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.