All assignees
766 prefixes in 346 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 346-700 | MULT | — | — | |
| 346-701 | HOUSTON | 903C | — | Yes |
| 346-702 | RICHMNRNBG | 508J | 2015-04-29 | Yes |
| 346-703 | PINEHURST | 318J | 2015-03-04 | Yes |
| 346-704 | HOUSTON | 004F | 2015-04-15 | Yes |
| 346-705 | CHANNELVW | 903C | 2023-06-15 | Yes |
| 346-706 | PINEHURST | 903C | — | Yes |
| 346-707 | VLY LODGE | 508J | 2015-05-08 | Yes |
| 346-708 | LANGHAMCRK | 004F | 2015-04-15 | Yes |
| 346-709 | LEAGUECITY | 903C | 2023-06-15 | Yes |
| 346-710 | BAYTOWN | 624H | 2019-10-09 | Yes |
| 346-711 | XXXXXXXXXX | MULT | — | — |
| 346-712 | APOLLO | 903C | 2023-05-16 | Yes |
| 346-713 | SMITHERSLK | 903C | 2023-06-15 | Yes |
| 346-714 | BAMMEL | 6701 | 2016-04-14 | Yes |
| 346-715 | BAMMEL | 6701 | 2016-04-14 | Yes |
| 346-716 | CLEVELAND | 6701 | 2023-10-04 | Yes |
| 346-717 | BAMMEL | 6701 | 2016-01-18 | Yes |
| 346-718 | HOUSTON | 6701 | 2016-04-14 | Yes |
| 346-719 | HOUSTON | 6701 | 2016-11-03 | Yes |
| 346-720 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-721 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-722 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-723 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-724 | LANGHAMCRK | 903C | 2023-06-22 | Yes |
| 346-725 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-726 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-727 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-728 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-729 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-730 | CYPRESS | 6506 | 2023-10-04 | Yes |
| 346-731 | CLEVELAND | 6506 | 2023-10-13 | Yes |
| 346-732 | CYPRESS | 965H | 2019-05-21 | Yes |
| 346-733 | LANGHAMCRK | 6506 | 2023-10-17 | Yes |
| 346-734 | BEACH CITY | 506J | 2023-06-22 | Yes |
| 346-735 | ALVIN | 6506 | 2023-10-26 | Yes |
| 346-736 | PORTER | 197D | 2023-10-27 | Yes |
| 346-737 | BAYTOWN | 6701 | 2023-10-31 | Yes |
| 346-738 | ALVIN | 903C | 2023-06-15 | Yes |
| 346-739 | HOUSTON | 6506 | 2023-11-06 | Yes |
| 346-740 | SPRING | 6506 | 2023-11-15 | Yes |
| 346-741 | HOUSTON | 839J | 2023-11-27 | Yes |
| 346-742 | BAMMEL | 903C | 2023-05-24 | Yes |
| 346-743 | BARKER | 516J | 2022-02-09 | Yes |
| 346-744 | HSTNSUBURB | 965H | 2021-07-26 | Yes |
| 346-745 | CYPRESS | 6506 | 2023-12-11 | Yes |
| 346-746 | SMITHERSLK | 507J | — | Yes |
| 346-747 | DICKINSON | 6506 | 2023-12-11 | Yes |
| 346-748 | BAMMEL | 939H | 2023-12-18 | Yes |
| 346-749 | BAYTOWN | 6506 | 2023-12-12 | Yes |
| 346-750 | HIGHLANDS | 939H | 2023-12-20 | Yes |
| 346-751 | ROSHARON | 939H | 2023-12-21 | Yes |
| 346-752 | LANGHAMCRK | 939H | 2023-12-21 | Yes |
| 346-753 | TOMBALL | 939H | 2023-12-21 | Yes |
| 346-754 | HSTNSUBURB | 6701 | 2015-06-10 | Yes |
| 346-755 | SUGAR LAND | 965H | 2021-08-11 | Yes |
| 346-756 | SPRING | 939H | 2023-12-21 | Yes |
| 346-757 | STAFFORD | 004F | 2016-06-27 | Yes |
| 346-758 | RICHMNRNBG | 965H | 2019-05-21 | Yes |
| 346-759 | KATY | 939H | 2023-12-21 | Yes |
| 346-760 | BARKER | 5562 | 2016-07-14 | Yes |
| 346-761 | SATSUMA | 939H | 2023-12-21 | Yes |
| 346-762 | RICHMNRNBG | 7138 | 2016-07-18 | Yes |
| 346-763 | BAMMEL | 6701 | 2016-11-07 | Yes |
| 346-764 | LANGHAMCRK | 6506 | 2023-12-22 | Yes |
| 346-765 | TOMBALL | 624H | 2024-01-10 | Yes |
| 346-766 | HOUSTON | 965H | 2019-05-21 | Yes |
| 346-767 | STAFFORD | 903C | 2020-11-16 | Yes |
| 346-768 | BAMMEL | 903C | 2024-01-29 | Yes |
| 346-769 | SATSUMA | 903C | 2024-01-29 | Yes |
| 346-770 | BAMMEL | 903C | 2015-12-15 | Yes |
| 346-771 | HOUSTON | 903C | 2024-01-25 | Yes |
| 346-772 | HOUSTON | 6114 | 2015-08-26 | Yes |
| 346-773 | HSTNSUBURB | 6534 | 2016-07-27 | Yes |
| 346-774 | HSTNSUBURB | 6534 | 2016-10-06 | Yes |
| 346-775 | HOUSTON | 6701 | 2015-11-24 | Yes |
| 346-776 | HSTNSUBURB | 903C | 2024-01-29 | Yes |
| 346-777 | BAMMEL | 319D | 2014-01-15 | Yes |
| 346-778 | ARCOLA | 903C | 2024-01-25 | Yes |
| 346-779 | SUGAR LAND | 5562 | 2016-10-11 | Yes |
| 346-780 | LANGHAMCRK | 6506 | 2024-02-07 | Yes |
| 346-781 | HOUSTON | 004F | 2024-02-16 | Yes |
| 346-782 | PORTER | 516J | 2022-01-14 | Yes |
| 346-783 | DEER PARK | 6534 | 2024-03-04 | Yes |
| 346-784 | SEABROOK | 903C | 2024-02-29 | Yes |
| 346-785 | ALVIN | 903C | 2024-03-28 | Yes |
| 346-786 | SPRING | 965H | 2020-06-22 | Yes |
| 346-787 | LA PORTE | 903C | 2016-03-23 | Yes |
| 346-788 | LEAGUECITY | 965H | 2020-11-25 | Yes |
| 346-789 | CHANNELVW | 965H | 2021-01-12 | Yes |
| 346-790 | LA PORTE | 903C | 2024-03-28 | Yes |
| 346-791 | HUMBLE | 903C | 2024-03-28 | Yes |
| 346-792 | LANGHAMCRK | 624H | 2024-04-02 | Yes |
| 346-793 | STAFFORD | 903C | 2024-04-10 | Yes |
| 346-794 | TOMBALL | 903C | 2024-04-12 | Yes |
| 346-795 | LANGHAMCRK | 6506 | 2024-04-16 | Yes |
| 346-796 | CYPRESS | 903C | 2024-04-18 | Yes |
| 346-797 | WESTFIELD | 903C | 2024-04-29 | Yes |
| 346-798 | FRIENDSWD | 903C | 2024-04-18 | Yes |
| 346-799 | CLEVELAND | 965H | 2020-11-27 | 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.