Phone numbers in Washington (Northern Virginia), Maryland
Washington (Northern Virginia) has 227 phone prefixes in area codes 227, 240, 301.
Biggest holders: Verizon (local phone), AT&T Mobility, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 24%
- Local phone company 41%
- Internet / business phone carrier 30%
- Phone company 4%
Every prefix in Washington (Northern Virginia)
Search the first six digits of a number in this list. If it's here, the number started in Washington (Northern Virginia) with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 227-202 | AT&T Mobility | Mobile carrier | 2023 |
| 227-204 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 227-216 | AT&T Mobility | Mobile carrier | 2023 |
| 227-222 | Wide Voice | Phone company | 2023 |
| 227-236 | AT&T Mobility | Mobile carrier | 2024 |
| 227-240 | Bandwidth | Internet / business phone carrier | 2024 |
| 227-241 | AT&T Mobility | Mobile carrier | 2024 |
| 227-250 | Onvoy | Internet / business phone carrier | 2024 |
| 227-251 | AT&T Mobility | Mobile carrier | 2024 |
| 227-254 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 227-264 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 227-271 | AT&T Mobility | Mobile carrier | 2025 |
| 227-273 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 227-274 | Onvoy | Internet / business phone carrier | 2025 |
| 227-280 | AT&T Mobility | Mobile carrier | 2025 |
| 227-287 | AT&T Mobility | Mobile carrier | 2025 |
| 227-296 | Onvoy | Internet / business phone carrier | 2026 |
| 227-298 | Verizon Wireless | Mobile carrier | 2026 |
| 227-303 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 227-304 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 227-305 | AT&T Mobility | Mobile carrier | 2025 |
| 227-310 | AT&T Mobility | Mobile carrier | 2026 |
| 227-312 | Onvoy | Internet / business phone carrier | 2026 |
| 227-319 | AT&T Mobility | Mobile carrier | 2026 |
| 227-333 | Onvoy | Internet / business phone carrier | 2025 |
| 227-338 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 227-770 | Onvoy | Internet / business phone carrier | 2024 |
| 227-999 | Wide Voice | Phone company | 2023 |
| 240-205 | AT&T Mobility | Mobile carrier | 2003 |
| 240-221 | Verizon (local phone) | Local phone company | – |
| 240-238 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-242 | Starpower Communications | Phone company | – |
| 240-244 | Starpower Communications | Phone company | – |
| 240-268 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-269 | Peerless Network Of Maryland | Internet / business phone carrier | – |
| 240-276 | Verizon (local phone) | Local phone company | 2004 |
| 240-283 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-290 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-292 | Verizon (local phone) | Local phone company | – |
| 240-293 | Starpower Communications | Phone company | – |
| 240-303 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-314 | Verizon (local phone) | Local phone company | – |
| 240-318 | Verizon (local phone) | Local phone company | – |
| 240-328 | Verizon (local phone) | Local phone company | – |
| 240-348 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-363 | Onvoy | Internet / business phone carrier | – |
| 240-371 | Peerless Network Of Maryland | Internet / business phone carrier | – |
| 240-386 | Verizon (local phone) | Local phone company | – |
| 240-399 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-401 | AT&T Mobility | Mobile carrier | – |
| 240-403 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-406 | AT&T Mobility | Mobile carrier | 2009 |
| 240-407 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-408 | AT&T Mobility | Mobile carrier | 2009 |
| 240-421 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 240-428 | Bandwidth | Internet / business phone carrier | – |
| 240-430 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-433 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-447 | AT&T Mobility | Mobile carrier | – |
| 240-453 | Verizon (local phone) | Local phone company | – |
| 240-471 | Onvoy | Internet / business phone carrier | – |
| 240-499 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-506 | AT&T Mobility | Mobile carrier | 2002 |
| 240-514 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-516 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-546 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-550 | AT&T Mobility | Mobile carrier | 2009 |
| 240-551 | AT&T Mobility | Mobile carrier | 2009 |
| 240-552 | AT&T Mobility | Mobile carrier | 2009 |
| 240-558 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 240-560 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 240-567 | Verizon (local phone) | Local phone company | 2006 |
| 240-590 | MetroPCS (T-Mobile) | Mobile carrier | 2018 |
| 240-599 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-614 | MetroPCS (T-Mobile) | Mobile carrier | 2013 |
| 240-618 | Verizon Wireless | Mobile carrier | 2014 |
| 240-620 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-621 | Bandwidth | Internet / business phone carrier | – |
| 240-627 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-642 | Advanced Telecom Solutions | Phone company | 2018 |
| 240-660 | Verizon Wireless | Mobile carrier | 2015 |
| 240-665 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 240-669 | Comcast | Internet / business phone carrier | – |
| 240-672 | Verizon Wireless | Mobile carrier | – |
| 240-715 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-728 | Vonage America | Internet / business phone carrier | 2020 |
| 240-731 | AT&T Mobility | Mobile carrier | – |
| 240-740 | Atlantech Online | Phone company | 2015 |
| 240-747 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 240-753 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-756 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 240-773 | Verizon (local phone) | Local phone company | – |
| 240-777 | Verizon (local phone) | Local phone company | – |
| 240-778 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-789 | Advanced Telecom Solutions | Phone company | 2021 |
| 240-796 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 240-810 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 240-826 | Verizon (local phone) | Local phone company | 2007 |
| 240-833 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-846 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 240-864 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 240-868 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 240-869 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 240-880 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-885 | Onvoy | Internet / business phone carrier | 2021 |
| 240-888 | AT&T Mobility | Mobile carrier | – |
| 240-889 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 240-897 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 240-907 | Verizon Wireless | Mobile carrier | 2016 |
| 240-921 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 240-922 | Fractel | Internet / business phone carrier | 2020 |
| 240-939 | Bandwidth | Internet / business phone carrier | 2022 |
| 240-949 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 240-966 | TON80 Communications | Internet / business phone carrier | 2022 |
| 240-970 | Onvoy | Internet / business phone carrier | 2015 |
| 240-973 | MetroPCS (T-Mobile) | Mobile carrier | 2022 |
| 240-974 | AT&T Mobility | Mobile carrier | 2022 |
| 240-987 | AT&T Mobility | Mobile carrier | 2023 |
| 240-992 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 240-994 | Verizon Wireless | Mobile carrier | – |
| 301-201 | AT&T Mobility | Mobile carrier | 2022 |
| 301-212 | Verizon (local phone) | Local phone company | – |
| 301-217 | Verizon (local phone) | Local phone company | – |
| 301-230 | Verizon (local phone) | Local phone company | – |
| 301-231 | Verizon (local phone) | Local phone company | – |
| 301-234 | Verizon (local phone) | Local phone company | – |
| 301-235 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-236 | Verizon (local phone) | Local phone company | – |
| 301-238 | Verizon (local phone) | Local phone company | – |
| 301-240 | Verizon (local phone) | Local phone company | – |
| 301-251 | Verizon (local phone) | Local phone company | – |
| 301-255 | Verizon (local phone) | Local phone company | – |
| 301-258 | Verizon (local phone) | Local phone company | – |
| 301-279 | Verizon (local phone) | Local phone company | – |
| 301-282 | Verizon (local phone) | Local phone company | – |
| 301-284 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-287 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-288 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-294 | Verizon (local phone) | Local phone company | – |
| 301-296 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-297 | Verizon (local phone) | Local phone company | – |
| 301-299 | Verizon (local phone) | Local phone company | – |
| 301-309 | Verizon (local phone) | Local phone company | – |
| 301-315 | Verizon (local phone) | Local phone company | – |
| 301-321 | Onvoy | Internet / business phone carrier | – |
| 301-339 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 301-340 | Verizon (local phone) | Local phone company | – |
| 301-348 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-353 | Verizon (local phone) | Local phone company | – |
| 301-354 | Teleport Communications America | Internet / business phone carrier | – |
| 301-372 | Verizon (local phone) | Local phone company | – |
| 301-382 | Verizon (local phone) | Local phone company | – |
| 301-384 | Verizon (local phone) | Local phone company | – |
| 301-388 | Verizon (local phone) | Local phone company | – |
| 301-398 | Verizon (local phone) | Local phone company | 2003 |
| 301-413 | Verizon (local phone) | Local phone company | – |
| 301-417 | Verizon (local phone) | Local phone company | – |
| 301-424 | Verizon (local phone) | Local phone company | – |
| 301-428 | Verizon (local phone) | Local phone company | – |
| 301-438 | Verizon (local phone) | Local phone company | – |
| 301-443 | Verizon (local phone) | Local phone company | – |
| 301-444 | Verizon (local phone) | Local phone company | – |
| 301-460 | Verizon (local phone) | Local phone company | – |
| 301-461 | Verizon Wireless | Mobile carrier | – |
| 301-468 | Verizon (local phone) | Local phone company | – |
| 301-517 | Verizon (local phone) | Local phone company | – |
| 301-522 | Verizon (local phone) | Local phone company | – |
| 301-529 | AT&T Mobility | Mobile carrier | – |
| 301-544 | Verizon (local phone) | Local phone company | – |
| 301-545 | Verizon (local phone) | Local phone company | – |
| 301-548 | Verizon (local phone) | Local phone company | – |
| 301-550 | AT&T Mobility | Mobile carrier | 2022 |
| 301-584 | Baltimore-washington Telephone (bwt) | Phone company | – |
| 301-590 | Verizon (local phone) | Local phone company | – |
| 301-598 | Verizon (local phone) | Local phone company | – |
| 301-601 | Verizon (local phone) | Local phone company | – |
| 301-603 | Verizon (local phone) | Local phone company | – |
| 301-605 | Verizon (local phone) | Local phone company | – |
| 301-610 | Verizon (local phone) | Local phone company | – |
| 301-637 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 301-640 | Verizon (local phone) | Local phone company | – |
| 301-649 | Verizon (local phone) | Local phone company | – |
| 301-670 | Verizon (local phone) | Local phone company | – |
| 301-679 | Teleport Communications America | Internet / business phone carrier | – |
| 301-692 | Teleport Communications America | Internet / business phone carrier | – |
| 301-719 | Teleport Communications America | Internet / business phone carrier | – |
| 301-721 | Verizon (local phone) | Local phone company | – |
| 301-738 | Verizon (local phone) | Local phone company | – |
| 301-761 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 301-762 | Verizon (local phone) | Local phone company | – |
| 301-765 | Verizon (local phone) | Local phone company | – |
| 301-770 | Verizon (local phone) | Local phone company | – |
| 301-795 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-816 | Verizon (local phone) | Local phone company | – |
| 301-822 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-825 | AT&T (local phone) | Local phone company | – |
| 301-838 | Verizon (local phone) | Local phone company | – |
| 301-840 | Verizon (local phone) | Local phone company | – |
| 301-847 | Verizon (local phone) | Local phone company | – |
| 301-856 | Verizon (local phone) | Local phone company | – |
| 301-868 | Verizon (local phone) | Local phone company | – |
| 301-871 | Verizon (local phone) | Local phone company | – |
| 301-877 | Verizon (local phone) | Local phone company | – |
| 301-879 | Verizon (local phone) | Local phone company | – |
| 301-881 | Verizon (local phone) | Local phone company | – |
| 301-888 | Verizon (local phone) | Local phone company | – |
| 301-890 | Verizon (local phone) | Local phone company | – |
| 301-903 | Verizon (local phone) | Local phone company | – |
| 301-917 | Starpower Communications | Phone company | – |
| 301-921 | Verizon (local phone) | Local phone company | – |
| 301-924 | Verizon (local phone) | Local phone company | – |
| 301-929 | Verizon (local phone) | Local phone company | – |
| 301-933 | Verizon (local phone) | Local phone company | – |
| 301-942 | Verizon (local phone) | Local phone company | – |
| 301-945 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-946 | Verizon (local phone) | Local phone company | – |
| 301-948 | Verizon (local phone) | Local phone company | – |
| 301-949 | Verizon (local phone) | Local phone company | – |
| 301-962 | Verizon (local phone) | Local phone company | – |
| 301-966 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 301-975 | Verizon (local phone) | Local phone company | – |
| 301-978 | Verizon (local phone) | Local phone company | – |
| 301-979 | T-Mobile (including Sprint) | Mobile carrier | – |
| 301-983 | Verizon (local phone) | Local phone company | – |
| 301-984 | Verizon (local phone) | Local phone company | – |
| 301-989 | Verizon (local phone) | Local phone company | – |
| 301-998 | 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.