Phone numbers in Dullesmtro, Virginia
Dullesmtro has 9 phone prefixes in area codes 571, 703.
Biggest holders: Verizon (local phone), Terra Nova Telecom, TON80 Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 22%
- Internet / business phone carrier 78%
Every prefix in Dullesmtro
Search the first six digits of a number in this list. If it's here, the number started in Dullesmtro with the carrier shown. If it isn't, check the Virginia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 571-600 | Terra Nova Telecom | Internet / business phone carrier | 2019 |
| 571-742 | TON80 Communications | Internet / business phone carrier | 2022 |
| 571-773 | Onvoy | Internet / business phone carrier | 2021 |
| 571-933 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 703-260 | Verizon (local phone) | Local phone company | – |
| 703-552 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 703-570 | Teleport Communications America | Internet / business phone carrier | – |
| 703-572 | Verizon (local phone) | Local phone company | – |
| 703-972 | Level 3 (Lumen) | Internet / business phone carrier | – |
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.