Phone numbers in Dulles, Virginia
Dulles has 16 phone prefixes in area codes 571, 703.
Biggest holders: MetroPCS (T-Mobile), Peerless Network Of Virginia, Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 19%
- Local phone company 12%
- Internet / business phone carrier 69%
Every prefix in Dulles
Search the first six digits of a number in this list. If it's here, the number started in Dulles with the carrier shown. If it isn't, check the Virginia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 571-413 | AT&T Mobility | Mobile carrier | – |
| 571-491 | MetroPCS (T-Mobile) | Mobile carrier | 2017 |
| 571-517 | Onvoy | Internet / business phone carrier | 2020 |
| 571-746 | TON80 Communications | Internet / business phone carrier | 2022 |
| 571-758 | MetroPCS (T-Mobile) | Mobile carrier | 2013 |
| 571-888 | Peerless Network Of Virginia | Internet / business phone carrier | 2013 |
| 571-934 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 703-423 | Teleport Communications America | Internet / business phone carrier | 2017 |
| 703-544 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 703-574 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 703-651 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 703-661 | Verizon (local phone) | Local phone company | – |
| 703-662 | Teleport Communications America | Internet / business phone carrier | – |
| 703-665 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 703-844 | Peerless Network Of Virginia | Internet / business phone carrier | 2012 |
| 703-996 | 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.