All assignees
800 prefixes in 813 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 813-300 | TAMPA | 6701 | 2001-05-22 | — |
| 813-301 | TAMPACEN | 0328 | — | — |
| 813-302 | TAMPACEN | 982E | 2011-09-23 | Yes |
| 813-303 | TAMPACEN | 937C | — | Yes |
| 813-304 | TAMPACEN | 6701 | 2011-11-08 | Yes |
| 813-305 | PLANT CITY | 829J | — | Yes |
| 813-306 | TAMPACEN | 0328 | — | — |
| 813-307 | TAMPACEN | 0328 | — | — |
| 813-308 | TAMPAEST | 902E | 2011-11-11 | Yes |
| 813-309 | TAMPA | 6502 | — | — |
| 813-310 | TAMPA | 6502 | — | — |
| 813-311 | XXXXXXXXXX | MULT | — | — |
| 813-312 | ZEPHYRHILS | 5562 | — | Yes |
| 813-313 | TAMPACEN | 7421 | 2001-09-20 | Yes |
| 813-314 | TAMPACEN | 0328 | — | Yes |
| 813-315 | TAMPAEST | 829J | — | Yes |
| 813-316 | TAMPA | 7635 | — | Yes |
| 813-317 | TAMPA | 7635 | — | Yes |
| 813-318 | TAMPACEN | 0328 | — | Yes |
| 813-319 | TAMPACEN | 7448 | — | — |
| 813-320 | TAMPASTH | 902E | 2011-12-28 | Yes |
| 813-321 | TAMPACEN | 045L | 2007-04-25 | Yes |
| 813-322 | ZEPHYRHILS | 7448 | — | Yes |
| 813-323 | TAMPACEN | 6214 | 2001-10-23 | Yes |
| 813-324 | TAMPAEST | 5562 | 2011-09-14 | Yes |
| 813-325 | TAMPA | 6701 | 2005-06-22 | Yes |
| 813-326 | TAMPA | 6502 | 2005-02-08 | Yes |
| 813-327 | TAMPACEN | 829J | 2014-07-02 | Yes |
| 813-328 | TAMPAWST | 5562 | 2016-07-05 | Yes |
| 813-329 | TAMPA | 8300 | — | — |
| 813-330 | TAMPAEST | 902E | 2012-06-06 | Yes |
| 813-331 | TAMPASTH | 4802 | 2012-12-04 | Yes |
| 813-332 | TAMPA | 6630 | — | — |
| 813-333 | TAMPANTH | 197D | — | Yes |
| 813-334 | TAMPA | 6214 | 2001-05-03 | — |
| 813-335 | TAMPA | 6214 | 2001-05-03 | — |
| 813-336 | TAMPAWST | 937C | — | Yes |
| 813-337 | TAMPACEN | 551G | 2012-01-03 | Yes |
| 813-338 | TAMPASTH | 624H | 2023-10-18 | Yes |
| 813-339 | TAMPA | 6630 | — | — |
| 813-340 | TAMPA | 6214 | 2001-05-03 | — |
| 813-341 | TAMPA | 829J | — | — |
| 813-342 | TAMPA | 8300 | — | — |
| 813-343 | TAMPAWST | 4802 | 2001-12-13 | Yes |
| 813-344 | TAMPACEN | 6502 | 2010-03-03 | Yes |
| 813-345 | TAMPANTH | 7421 | 2001-12-13 | Yes |
| 813-346 | TAMPANTH | 829J | 2002-03-13 | — |
| 813-347 | TAMPACEN | 5562 | 2009-02-17 | Yes |
| 813-348 | TAMPACEN | 0328 | — | — |
| 813-349 | TAMPA | 7448 | — | — |
| 813-350 | TAMPACEN | 0328 | — | — |
| 813-351 | TAMPACEN | 0328 | — | Yes |
| 813-352 | TAMPA | 6502 | 2005-08-16 | Yes |
| 813-353 | TAMPACEN | 0328 | — | — |
| 813-354 | TAMPACEN | 0328 | — | — |
| 813-355 | ZEPHYRHILS | 5562 | 2002-03-27 | Yes |
| 813-356 | TAMPACEN | 0328 | — | Yes |
| 813-357 | TAMPACEN | 0328 | — | Yes |
| 813-358 | TAMPAWST | 937C | 2009-12-01 | Yes |
| 813-359 | PLANT CITY | 8300 | — | Yes |
| 813-360 | TAMPACEN | 6701 | 2012-03-16 | Yes |
| 813-361 | TAMPACEN | 6214 | — | — |
| 813-362 | TAMPACEN | 6214 | — | — |
| 813-363 | TAMPACEN | 6701 | 2002-04-25 | Yes |
| 813-364 | ZEPHYRHILS | 8300 | — | Yes |
| 813-365 | PLANT CITY | 6502 | — | Yes |
| 813-366 | TAMPAWST | 8300 | — | Yes |
| 813-367 | TAMPACEN | 4802 | — | Yes |
| 813-368 | TAMPA | 6701 | — | — |
| 813-369 | TAMPACEN | 5562 | 2008-03-21 | Yes |
| 813-370 | TAMPAWST | 982E | 2015-04-28 | Yes |
| 813-371 | TAMPA | 7448 | — | — |
| 813-372 | TAMPACEN | 0328 | 2004-07-30 | Yes |
| 813-373 | TAMPACEN | 6502 | 2008-06-17 | Yes |
| 813-374 | TAMPACEN | 045L | 2008-01-28 | Yes |
| 813-375 | TAMPACEN | 0328 | — | Yes |
| 813-376 | TAMPA | 5562 | — | Yes |
| 813-377 | ZEPHYRHILS | 7635 | — | Yes |
| 813-378 | TAMPAEST | 5562 | 2017-01-04 | Yes |
| 813-379 | TAMPACEN | 5562 | 2008-04-10 | Yes |
| 813-380 | TAMPA | 6701 | 2001-01-30 | Yes |
| 813-381 | TAMPAEST | 5562 | 2008-03-26 | Yes |
| 813-382 | TAMPA | 6214 | 2001-05-03 | — |
| 813-383 | TAMPA | 7448 | — | — |
| 813-384 | TAMPACEN | 5562 | 2008-04-08 | Yes |
| 813-385 | TAMPA | 7448 | — | Yes |
| 813-386 | TAMPACEN | 7635 | — | — |
| 813-387 | TAMPACEN | 7635 | — | — |
| 813-388 | TAMPANTH | 6502 | 2002-10-18 | Yes |
| 813-389 | TAMPA | 6701 | 2001-03-30 | — |
| 813-390 | TAMPA | 6214 | 2001-05-03 | — |
| 813-391 | TAMPA | 6701 | — | Yes |
| 813-392 | TAMPACEN | 8300 | 2017-02-27 | Yes |
| 813-393 | TAMPACEN | 8300 | 2002-10-22 | Yes |
| 813-394 | TAMPA | 6502 | — | Yes |
| 813-395 | ZEPHYRHILS | 4802 | — | Yes |
| 813-396 | TAMPACEN | 0328 | — | — |
| 813-397 | TAMPACEN | 6701 | — | Yes |
| 813-398 | PLANT CITY | 594D | 2007-01-18 | Yes |
| 813-399 | TAMPACEN | 6701 | 2010-12-06 | 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.