| NPA | NXX | CLLI | City, ST | Telco |
| 281 | 201 | HSTNTX01DS2 | SUGAR LAND | AT&T LOCAL |
| 281 | 206 | HSTNTX01DS2 | BARKER | AT&T LOCAL |
| 281 | 248 | HSTNTX01DS2 | BAMMEL | AT&T LOCAL |
| 281 | 310 | HSTNTX01DS2 | HSTNSUBURB | AT&T LOCAL |
| 713 | 577 | HSTNTX01DS2 | HOUSTON | AT&T LOCAL |
| 832 | 261 | HSTNTX01DS2 | SEABROOK | AT&T LOCAL |