SOUTHWESTERN BELL
470 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-207 | HOUSTON | 9533 | — | — |
| 713-209 | HOUSTON | 9533 | — | — |
| 713-210 | HOUSTON | 9533 | — | Yes |
| 713-212 | HOUSTON | 9533 | — | Yes |
| 713-214 | HOUSTON | 9533 | — | — |
| 713-215 | HOUSTON | 9533 | — | — |
| 713-216 | HOUSTON | 9533 | — | — |
| 713-217 | HOUSTON | 9533 | — | — |
| 713-218 | HOUSTON | 9533 | — | — |
| 713-219 | HOUSTON | 9533 | — | Yes |
| 713-220 | HOUSTON | 9533 | — | — |
| 713-221 | HOUSTON | 9533 | — | Yes |
| 713-222 | HOUSTON | 9533 | — | — |
| 713-223 | HOUSTON | 9533 | — | — |
| 713-224 | HOUSTON | 9533 | — | — |
| 713-225 | HOUSTON | 9533 | — | — |
| 713-226 | HOUSTON | 9533 | — | Yes |
| 713-227 | HOUSTON | 9533 | — | — |
| 713-228 | HOUSTON | 9533 | — | Yes |
| 713-229 | HOUSTON | 9533 | — | — |
| 713-230 | HOUSTON | 9533 | — | Yes |
| 713-232 | HOUSTON | 9533 | — | Yes |
| 713-233 | HOUSTON | 9533 | — | — |
| 713-235 | HOUSTON | 9533 | — | Yes |
| 713-236 | HOUSTON | 9533 | — | — |
| 713-237 | HOUSTON | 9533 | — | — |
| 713-238 | HOUSTON | 9533 | — | — |
| 713-242 | HOUSTON | 9533 | — | Yes |
| 713-243 | HOUSTON | 9533 | — | — |
| 713-244 | HOUSTON | 9533 | — | Yes |
| 713-245 | HOUSTON | 9533 | — | Yes |
| 713-246 | DEER PARK | 9533 | — | — |
| 713-247 | HOUSTON | 9533 | — | Yes |
| 713-250 | HOUSTON | 9533 | — | Yes |
| 713-251 | HOUSTON | 9533 | 2008-07-02 | Yes |
| 713-257 | HOUSTON | 9533 | — | Yes |
| 713-259 | HOUSTON | 9533 | — | Yes |
| 713-260 | HOUSTON | 9533 | — | — |
| 713-262 | HOUSTON | 9533 | — | Yes |
| 713-263 | HOUSTON | 9533 | — | Yes |
| 713-264 | HOUSTON | 9533 | 2001-04-19 | Yes |
| 713-265 | HOUSTON | 9533 | — | Yes |
| 713-266 | HOUSTON | 9533 | — | — |
| 713-267 | HOUSTON | 9533 | — | — |
| 713-268 | HOUSTON | 9533 | — | — |
| 713-270 | HOUSTON | 9533 | — | — |
| 713-271 | HOUSTON | 9533 | — | — |
| 713-272 | HOUSTON | 9533 | — | — |
| 713-273 | HOUSTON | 9533 | — | — |
| 713-274 | HOUSTON | 9533 | 2010-07-19 | Yes |
| 713-276 | HOUSTON | 9533 | — | — |
| 713-277 | HOUSTON | 9533 | — | Yes |
| 713-278 | HOUSTON | 9533 | — | — |
| 713-283 | HOUSTON | 9533 | — | Yes |
| 713-284 | HOUSTON | 9533 | — | — |
| 713-285 | HOUSTON | 9533 | — | — |
| 713-286 | HOUSTON | 9533 | — | — |
| 713-287 | HOUSTON | 9533 | — | Yes |
| 713-289 | HOUSTON | 9533 | — | Yes |
| 713-290 | HOUSTON | 9533 | — | — |
| 713-293 | HOUSTON | 9533 | — | Yes |
| 713-295 | HOUSTON | 9533 | — | Yes |
| 713-296 | HOUSTON | 9533 | — | Yes |
| 713-297 | HOUSTON | 9533 | — | Yes |
| 713-307 | HOUSTON | 9533 | — | Yes |
| 713-308 | HOUSTON | 9533 | — | — |
| 713-309 | HOUSTON | 9533 | — | Yes |
| 713-313 | HOUSTON | 9533 | — | — |
| 713-314 | HOUSTON | 9533 | — | Yes |
| 713-315 | HOUSTON | 9533 | — | Yes |
| 713-316 | HOUSTON | 9533 | — | — |
| 713-319 | HOUSTON | 9533 | — | Yes |
| 713-321 | HOUSTON | 9533 | — | Yes |
| 713-329 | HOUSTON | 9533 | — | — |
| 713-330 | HOUSTON | 9533 | — | Yes |
| 713-334 | HOUSTON | 9533 | — | — |
| 713-336 | HOUSTON | 9533 | — | Yes |
| 713-338 | HOUSTON | 9533 | 2010-04-05 | Yes |
| 713-339 | HOUSTON | 9533 | — | Yes |
| 713-340 | HSTNSUBURB | 9533 | — | Yes |
| 713-342 | HOUSTON | 9533 | — | — |
| 713-348 | HOUSTON | 9533 | — | Yes |
| 713-349 | HOUSTON | 9533 | — | Yes |
| 713-350 | HOUSTON | 9533 | — | — |
| 713-355 | HOUSTON | 9533 | — | Yes |
| 713-356 | HOUSTON | 9533 | — | — |
| 713-359 | HOUSTON | 9533 | — | Yes |
| 713-361 | HOUSTON | 9533 | — | — |
| 713-363 | HOUSTON | 9533 | — | Yes |
| 713-365 | HOUSTON | 9533 | — | — |
| 713-368 | HOUSTON | 9533 | — | — |
| 713-371 | HOUSTON | 9533 | — | Yes |
| 713-372 | HOUSTON | 9533 | 2007-03-12 | Yes |
| 713-374 | HOUSTON | 9533 | — | Yes |
| 713-377 | SPRING | 9533 | — | Yes |
| 713-378 | HOUSTON | 9533 | — | Yes |
| 713-381 | HOUSTON | 9533 | 2006-03-01 | Yes |
| 713-383 | HOUSTON | 9533 | — | Yes |
| 713-384 | HOUSTON | 9533 | — | Yes |
| 713-386 | HOUSTON | 9533 | — | 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.