All assignees
799 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-300 | HOUSTON | 7239 | — | — |
| 713-301 | HOUSTON | 6534 | — | — |
| 713-302 | HOUSTON | 6534 | — | — |
| 713-303 | HOUSTON | 6534 | — | — |
| 713-304 | HOUSTON | 6534 | — | — |
| 713-305 | HOUSTON | 6534 | — | — |
| 713-306 | HOUSTON | 6534 | — | — |
| 713-307 | HOUSTON | 9533 | — | Yes |
| 713-308 | HOUSTON | 9533 | — | — |
| 713-309 | HOUSTON | 9533 | — | Yes |
| 713-310 | HOUSTON | 6630 | — | — |
| 713-311 | XXXXXXXXXX | MULT | — | — |
| 713-312 | HOUSTON | 6591 | — | — |
| 713-313 | HOUSTON | 9533 | — | — |
| 713-314 | HOUSTON | 9533 | — | Yes |
| 713-315 | HOUSTON | 9533 | — | Yes |
| 713-316 | HOUSTON | 9533 | — | — |
| 713-317 | HOUSTON | 9748 | — | — |
| 713-318 | HOUSTON | 6630 | — | — |
| 713-319 | HOUSTON | 9533 | — | Yes |
| 713-320 | HOUSTON | 6701 | — | Yes |
| 713-321 | HOUSTON | 9533 | — | Yes |
| 713-322 | HOUSTON | 004F | 2013-05-20 | Yes |
| 713-323 | HSTNSUBURB | 7239 | 2007-08-22 | Yes |
| 713-324 | HOUSTON | 6114 | — | — |
| 713-325 | HOUSTON | 7138 | 2014-01-21 | Yes |
| 713-326 | HOUSTON | 6630 | — | — |
| 713-327 | HOUSTON | 6630 | — | — |
| 713-328 | HOUSTON | 7074 | — | Yes |
| 713-329 | HOUSTON | 9533 | — | — |
| 713-330 | HOUSTON | 9533 | — | Yes |
| 713-331 | HOUSTON | 7239 | — | — |
| 713-332 | HOUSTON | 7239 | — | — |
| 713-333 | HOUSTON | 903C | — | — |
| 713-334 | HOUSTON | 9533 | — | — |
| 713-335 | HOUSTON | 7074 | — | — |
| 713-336 | HOUSTON | 9533 | — | Yes |
| 713-337 | HOUSTON | 903C | — | — |
| 713-338 | HOUSTON | 9533 | 2010-04-05 | Yes |
| 713-339 | HOUSTON | 9533 | — | Yes |
| 713-340 | HSTNSUBURB | 9533 | — | Yes |
| 713-341 | HOUSTON | 7074 | — | — |
| 713-342 | HOUSTON | 9533 | — | — |
| 713-343 | HOUSTON | 829J | — | — |
| 713-344 | HOUSTON | 7239 | — | Yes |
| 713-345 | HOUSTON | 7239 | — | Yes |
| 713-346 | HOUSTON | 7239 | — | — |
| 713-347 | HOUSTON | 903C | 2022-04-28 | Yes |
| 713-348 | HOUSTON | 9533 | — | Yes |
| 713-349 | HOUSTON | 9533 | — | Yes |
| 713-350 | HOUSTON | 9533 | — | — |
| 713-351 | HOUSTON | 7074 | — | Yes |
| 713-352 | APOLLO | 004F | 2013-05-21 | Yes |
| 713-353 | HOUSTON | 7138 | — | — |
| 713-354 | HOUSTON | 7239 | — | Yes |
| 713-355 | HOUSTON | 9533 | — | Yes |
| 713-356 | HOUSTON | 9533 | — | — |
| 713-357 | HOUSTON | 7239 | — | Yes |
| 713-358 | HOUSTON | 7074 | — | — |
| 713-359 | HOUSTON | 9533 | — | Yes |
| 713-360 | HOUSTON | 829J | 2011-09-12 | Yes |
| 713-361 | HOUSTON | 9533 | — | — |
| 713-362 | HOUSTON | 7074 | 2001-12-14 | — |
| 713-363 | HOUSTON | 9533 | — | Yes |
| 713-364 | HOUSTON | 004F | 2006-07-25 | Yes |
| 713-365 | HOUSTON | 9533 | — | — |
| 713-366 | HOUSTON | 7670 | — | Yes |
| 713-367 | HOUSTON | 004F | 2006-09-18 | Yes |
| 713-368 | HOUSTON | 9533 | — | — |
| 713-369 | HOUSTON | 7239 | — | — |
| 713-370 | HOUSTON | 903C | 2008-08-20 | Yes |
| 713-371 | HOUSTON | 9533 | — | Yes |
| 713-372 | HOUSTON | 9533 | 2007-03-12 | Yes |
| 713-373 | HOUSTON | 7670 | — | Yes |
| 713-374 | HOUSTON | 9533 | — | Yes |
| 713-375 | HOUSTON | 7074 | — | — |
| 713-376 | HOUSTON | 6534 | — | — |
| 713-377 | SPRING | 9533 | — | Yes |
| 713-378 | HOUSTON | 9533 | — | Yes |
| 713-379 | APOLLO | 903C | 2022-05-04 | Yes |
| 713-380 | HOUSTON | 7074 | 2013-08-19 | Yes |
| 713-381 | HOUSTON | 9533 | 2006-03-01 | Yes |
| 713-382 | HOUSTON | 6701 | — | Yes |
| 713-383 | HOUSTON | 9533 | — | Yes |
| 713-384 | HOUSTON | 9533 | — | Yes |
| 713-385 | HOUSTON | 5562 | — | Yes |
| 713-386 | HOUSTON | 9533 | — | Yes |
| 713-387 | HOUSTON | 9533 | — | Yes |
| 713-388 | HOUSTON | 9533 | — | Yes |
| 713-389 | SPRING | 9533 | 2008-04-15 | Yes |
| 713-390 | HOUSTON | 9533 | — | — |
| 713-391 | HOUSTON | 9533 | — | Yes |
| 713-392 | HOUSTON | 6534 | — | — |
| 713-393 | HOUSTON | 9533 | — | Yes |
| 713-394 | HOUSTON | 9533 | — | — |
| 713-395 | HOUSTON | 7074 | — | — |
| 713-396 | HOUSTON | 7074 | — | Yes |
| 713-397 | HOUSTON | 6534 | — | — |
| 713-398 | HOUSTON | 5562 | — | Yes |
| 713-399 | HOUSTON | 624H | 2022-05-04 | 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.