Phone numbers in Brandywine, Maryland
Brandywine has 12 phone prefixes in area codes 240, 301.
Biggest holders: Level 3 (Lumen), MCImetro (Verizon Business), Verizon (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 8%
- Local phone company 25%
- Internet / business phone carrier 67%
Every prefix in Brandywine
Search the first six digits of a number in this list. If it's here, the number started in Brandywine with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 240-250 | Peerless Network Of Maryland | Internet / business phone carrier | – |
| 240-681 | Windstream (PAETEC) | Internet / business phone carrier | 2003 |
| 240-685 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-746 | AT&T (local phone) | Local phone company | 2020 |
| 240-787 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-799 | Fractel | Internet / business phone carrier | 2020 |
| 240-823 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 240-905 | MetroPCS (T-Mobile) | Mobile carrier | 2022 |
| 301-242 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-579 | Verizon (local phone) | Local phone company | – |
| 301-720 | Teleport Communications America | Internet / business phone carrier | – |
| 301-782 | Verizon (local phone) | Local phone company | – |
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.