LEVEL 3 OF TELECOM OF TEXAS, LLC - TX
19 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-328 | HOUSTON | 7074 | — | Yes |
| 713-335 | HOUSTON | 7074 | — | — |
| 713-341 | HOUSTON | 7074 | — | — |
| 713-351 | HOUSTON | 7074 | — | Yes |
| 713-358 | HOUSTON | 7074 | — | — |
| 713-362 | HOUSTON | 7074 | 2001-12-14 | — |
| 713-375 | HOUSTON | 7074 | — | — |
| 713-380 | HOUSTON | 7074 | 2013-08-19 | Yes |
| 713-395 | HOUSTON | 7074 | — | — |
| 713-396 | HOUSTON | 7074 | — | Yes |
| 713-441 | HOUSTON | 7074 | — | — |
| 713-452 | HOUSTON | 7074 | 2008-04-29 | Yes |
| 713-457 | HOUSTON | 7074 | — | — |
| 713-482 | HSTNSUBURB | 7074 | — | Yes |
| 713-486 | HOUSTON | 7074 | 2008-07-22 | Yes |
| 713-579 | HOUSTON | 7074 | — | — |
| 713-580 | HOUSTON | 7074 | — | — |
| 713-583 | HOUSTON | 7074 | 2004-12-13 | Yes |
| 713-815 | HOUSTON | 7074 | 2012-09-26 | 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.