All assignees
649 prefixes in 571 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 571-400 | WSNGTNZN08 | 145J | 2019-03-15 | Yes |
| 571-401 | HERNDON | 7229 | 2018-11-15 | Yes |
| 571-402 | DALE CITY | 5832 | 2009-03-20 | Yes |
| 571-403 | WSNGTNZN08 | 6855 | 2008-02-06 | Yes |
| 571-404 | BRADDOCK | 551G | 2018-07-05 | Yes |
| 571-405 | WSNGTNZN17 | 6827 | 2008-05-13 | Yes |
| 571-406 | TRIANGLE | 5832 | 2006-01-26 | Yes |
| 571-407 | WSNGTNZN19 | 318J | — | Yes |
| 571-408 | OCCOQUAN | 6827 | 2008-05-13 | Yes |
| 571-409 | OCCOQUAN | 6827 | 2010-02-16 | Yes |
| 571-410 | LEESBURG | 138E | 2019-10-31 | Yes |
| 571-411 | XXXXXXXXXX | MULT | — | — |
| 571-412 | OCCOQUAN | 6855 | 2018-11-21 | Yes |
| 571-413 | DULLES | 4036 | — | Yes |
| 571-414 | WSNGTNZN08 | 7229 | 2012-08-29 | Yes |
| 571-415 | HAYMARKET | 8825 | 2019-08-01 | Yes |
| 571-416 | LEESBURG | 515J | 2020-09-15 | Yes |
| 571-417 | LEESBURG | 7229 | 2018-02-06 | Yes |
| 571-418 | WSNGTNZN19 | 079F | 2011-09-01 | Yes |
| 571-419 | WSNGTNZN17 | 6827 | 2011-04-08 | Yes |
| 571-420 | LEESBURG | 4036 | 2009-02-03 | Yes |
| 571-421 | WSNGTNZN17 | 8825 | 2010-12-21 | Yes |
| 571-422 | WSNGTNZN17 | 6827 | 2009-11-18 | Yes |
| 571-423 | WSNGTNZN17 | 9213 | 2001-05-15 | Yes |
| 571-424 | WSNGTNZN17 | 6827 | 2013-01-15 | Yes |
| 571-425 | WSNGTNZN17 | 4036 | 2009-11-03 | Yes |
| 571-426 | HERNDON | 6855 | 2001-06-06 | Yes |
| 571-427 | OCCOQUAN | 073H | — | Yes |
| 571-428 | MANASSAS | 4036 | 2012-04-06 | Yes |
| 571-429 | WSNGTNZN08 | 6827 | 2011-02-09 | Yes |
| 571-430 | HERNDON | 6855 | 2020-01-07 | Yes |
| 571-431 | WSNGTNZN08 | 9213 | — | Yes |
| 571-432 | WSNGTNZN19 | 9213 | — | Yes |
| 571-433 | WSNGTNZN08 | 9748 | — | — |
| 571-434 | HERNDON | 9213 | — | — |
| 571-435 | WSNGTNZN19 | 6855 | — | Yes |
| 571-436 | HERNDON | 6855 | — | Yes |
| 571-437 | HERNDON | 6855 | 2001-03-22 | Yes |
| 571-438 | WSNGTNZN08 | 829J | 2001-12-27 | Yes |
| 571-439 | LEESBURG | 6827 | 2008-05-13 | Yes |
| 571-440 | LEESBURG | 5562 | 2019-03-15 | Yes |
| 571-441 | HERNDON | 275G | 2012-01-25 | Yes |
| 571-442 | LEESBURG | 6827 | 2011-01-11 | Yes |
| 571-443 | HERNDON | 6855 | 2017-09-01 | Yes |
| 571-444 | WSNGTNZN08 | 138E | 2015-08-13 | Yes |
| 571-445 | HAYMARKET | 079F | 2010-02-15 | Yes |
| 571-446 | HERNDON | 8825 | 2014-08-08 | Yes |
| 571-447 | WSNGTNZN08 | 6827 | 2011-05-13 | Yes |
| 571-448 | ENGLESIDE | 7229 | — | Yes |
| 571-449 | HERNDON | 6827 | 2008-09-09 | Yes |
| 571-450 | LORTON | 079F | 2020-01-31 | Yes |
| 571-451 | WSNGTNZN08 | 829J | 2005-06-13 | Yes |
| 571-452 | WSNGTNZN08 | 9213 | 2013-11-26 | Yes |
| 571-453 | WSNGTNZN17 | 079F | 2020-02-05 | Yes |
| 571-454 | MANASSAS | 7229 | 2019-08-27 | Yes |
| 571-455 | WSNGTNZN19 | 6827 | 2009-12-21 | Yes |
| 571-456 | TRIANGLE | 4036 | 2020-03-09 | Yes |
| 571-457 | WSNGTNZN08 | 6827 | 2016-07-11 | Yes |
| 571-458 | WSNGTNZN08 | 6855 | 2012-11-20 | Yes |
| 571-459 | WSNGTNZN19 | 6827 | 2016-02-08 | Yes |
| 571-460 | WSNGTNZN19 | 4036 | 2020-04-08 | Yes |
| 571-461 | WSNGTNZN17 | 079F | 2019-12-20 | Yes |
| 571-462 | OCCOQUAN | 6855 | 2020-03-31 | Yes |
| 571-463 | ARCOLA | 597F | 2019-07-10 | Yes |
| 571-464 | HERNDON | 6855 | 2019-09-12 | Yes |
| 571-465 | LEESBURG | 6827 | — | Yes |
| 571-466 | TRIANGLE | 5562 | 2015-08-25 | Yes |
| 571-467 | WSNGTNZN08 | 079F | 2020-04-09 | Yes |
| 571-468 | WSNGTNZN17 | 9213 | 2008-04-09 | Yes |
| 571-469 | HAYMARKET | 4036 | — | Yes |
| 571-470 | WSNGTNZN19 | 079F | 2020-07-14 | Yes |
| 571-471 | HERNDON | 4036 | 2009-03-05 | Yes |
| 571-472 | WSNGTNZN17 | 7229 | 2015-09-17 | Yes |
| 571-473 | WSNGTNZN08 | 478J | 2020-09-04 | Yes |
| 571-474 | WSNGTNZN19 | 6855 | 2015-09-15 | Yes |
| 571-475 | BRADDOCK | 197D | 2020-05-14 | Yes |
| 571-476 | WSNGTNZN19 | 7529 | 2020-12-24 | Yes |
| 571-477 | OCCOQUAN | 6827 | 2011-02-08 | Yes |
| 571-478 | WSNGTNZN08 | 6855 | 2021-11-18 | Yes |
| 571-479 | LEESBURG | 478J | 2020-10-27 | Yes |
| 571-480 | WSNGTNZN08 | 4036 | 2006-11-28 | Yes |
| 571-481 | WSNGTNZN08 | 4036 | 2006-07-05 | Yes |
| 571-482 | WSNGTNZN08 | 4036 | 2006-11-28 | Yes |
| 571-483 | WSNGTNZN08 | 9213 | 2006-11-28 | Yes |
| 571-484 | HERNDON | 6855 | 2006-09-20 | Yes |
| 571-485 | HERNDON | 6827 | 2008-11-13 | Yes |
| 571-486 | HAYMARKET | 4036 | 2015-03-27 | Yes |
| 571-487 | ARCOLA | 7229 | 2019-07-09 | Yes |
| 571-488 | WSNGTNZN17 | 6827 | 2010-07-09 | Yes |
| 571-489 | WSNGTNZN17 | 6855 | 2014-10-14 | Yes |
| 571-490 | WSNGTNZN19 | 9213 | 2007-02-23 | Yes |
| 571-491 | DULLES | 5562 | 2017-09-26 | Yes |
| 571-492 | OCCOQUAN | 318J | 2011-04-12 | Yes |
| 571-493 | DALE CITY | 5832 | — | Yes |
| 571-494 | TRIANGLE | 0233 | 2009-12-22 | Yes |
| 571-495 | WSNGTNZN19 | 8825 | 2017-09-29 | Yes |
| 571-496 | LORTONMTRO | 8825 | 2019-12-20 | Yes |
| 571-497 | OCCOQUAN | 6827 | 2019-09-23 | Yes |
| 571-498 | LEESBURG | 275G | 2019-09-06 | Yes |
| 571-499 | WSNGTNZN17 | 6827 | 2009-05-01 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.