All assignees
766 prefixes in 346 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 346-800 | HOUSTON | 903C | 2015-03-26 | Yes |
| 346-801 | BEACH CITY | 5562 | 2015-06-01 | Yes |
| 346-802 | HOUSTON | 6506 | 2015-06-18 | Yes |
| 346-803 | HSTNSUBURB | 6701 | 2015-06-10 | Yes |
| 346-804 | HSTNSUBURB | 6534 | 2015-06-22 | Yes |
| 346-805 | HUMBLE | 6701 | 2024-08-28 | Yes |
| 346-806 | LANGHAMCRK | 6506 | 2025-05-07 | Yes |
| 346-807 | LANGHAMCRK | 6506 | 2024-09-30 | Yes |
| 346-808 | TOMBALL | 004F | 2015-06-08 | Yes |
| 346-809 | HOUSTON | 903C | 2024-04-29 | Yes |
| 346-810 | DICKINSON | 903C | 2021-01-22 | Yes |
| 346-811 | XXXXXXXXXX | MULT | — | — |
| 346-812 | BAMMEL | 6701 | 2015-07-14 | Yes |
| 346-813 | BAMMEL | 6701 | 2015-08-27 | Yes |
| 346-814 | SPRING | 6701 | 2015-12-10 | Yes |
| 346-815 | APOLLO | 7138 | 2015-07-24 | Yes |
| 346-816 | ARCOLA | 6534 | 2016-08-31 | Yes |
| 346-817 | HOUSTON | 6114 | 2026-07-16 | Yes |
| 346-818 | CYPRESS | 6701 | 2015-12-10 | Yes |
| 346-819 | HUMBLE | 6701 | 2024-12-26 | Yes |
| 346-820 | BARKER | 6701 | 2024-12-26 | Yes |
| 346-821 | SPLENDORA | 903C | 2024-05-15 | Yes |
| 346-822 | HSTNSUBURB | 965H | 2022-02-01 | Yes |
| 346-823 | LANGHAMCRK | 6506 | 2024-05-28 | Yes |
| 346-824 | BARKER | 903C | 2024-05-29 | Yes |
| 346-825 | CLEVELAND | 6506 | 2024-06-06 | Yes |
| 346-826 | HOUSTON | 903C | 2024-06-06 | Yes |
| 346-827 | KATY | 903C | 2024-06-07 | Yes |
| 346-828 | SPRING | 903C | 2024-06-10 | Yes |
| 346-829 | SUGAR LAND | 516C | 2024-08-13 | Yes |
| 346-830 | HOUSTON | 0051 | 2024-09-26 | — |
| 346-831 | SPRING | 6506 | 2015-12-15 | Yes |
| 346-832 | HOUSTON | 6114 | 2024-07-16 | Yes |
| 346-833 | HOUSTON | 965H | 2022-02-01 | Yes |
| 346-834 | HOUSTON | 9533 | 2014-02-27 | Yes |
| 346-835 | HOUSTON | 6114 | 2024-07-16 | Yes |
| 346-836 | SUGAR LAND | 0051 | 2024-09-26 | — |
| 346-837 | BAMMEL | 516J | 2022-01-07 | Yes |
| 346-838 | HIGHLANDS | 0051 | 2024-09-26 | — |
| 346-839 | APOLLO | 004F | 2024-09-26 | Yes |
| 346-840 | RICHMNRNBG | 6534 | 2024-10-02 | Yes |
| 346-841 | BEACH CITY | 839J | 2024-10-07 | Yes |
| 346-842 | HUMBLE | 965H | 2019-05-21 | Yes |
| 346-843 | RICHMNRNBG | 6701 | 2016-07-14 | Yes |
| 346-844 | DEER PARK | 839J | 2024-10-07 | Yes |
| 346-845 | HOUSTON | 7138 | 2024-10-17 | Yes |
| 346-846 | HSTNSUBURB | 6534 | 2024-11-07 | Yes |
| 346-847 | LANGHAMCRK | 6506 | 2024-11-22 | Yes |
| 346-848 | CYPRESS | 6506 | 2024-11-22 | Yes |
| 346-849 | LANGHAMCRK | 6534 | 2025-01-06 | Yes |
| 346-850 | CYPRESS | 903C | 2025-01-09 | Yes |
| 346-851 | KATY | 903C | 2025-01-09 | Yes |
| 346-852 | LANGHAMCRK | 6506 | 2025-01-15 | Yes |
| 346-853 | HSTNSUBURB | 515J | 2025-02-04 | Yes |
| 346-854 | KEMAH | 004F | 2024-12-09 | Yes |
| 346-855 | BAYTOWN | 965H | 2021-07-30 | Yes |
| 346-856 | CHANNELVW | 515J | 2025-02-04 | Yes |
| 346-857 | RICHMNRNBG | 6534 | 2015-04-21 | Yes |
| 346-858 | CLEVELAND | 515J | 2025-02-04 | Yes |
| 346-859 | SUGAR LAND | 903C | 2025-02-13 | Yes |
| 346-860 | HOUSTON | 490J | 2025-02-18 | Yes |
| 346-861 | BAMMEL | 6534 | 2024-07-10 | Yes |
| 346-862 | HOUSTON | 6114 | 2025-03-05 | Yes |
| 346-863 | HOUSTON | 733J | 2025-03-28 | Yes |
| 346-864 | DICKINSON | 6506 | 2025-04-16 | Yes |
| 346-865 | SATSUMA | 624H | 2025-04-18 | Yes |
| 346-866 | VLY LODGE | 965H | 2021-05-10 | Yes |
| 346-867 | HOUSTON | 939H | 2016-11-02 | Yes |
| 346-868 | HOUSTON | 6506 | 2025-04-21 | Yes |
| 346-869 | HSTNSUBURB | 490J | 2025-04-22 | Yes |
| 346-870 | LANGHAMCRK | 490J | 2025-05-12 | Yes |
| 346-871 | STAFFORD | 6701 | 2025-05-29 | Yes |
| 346-872 | SPRING | 6534 | 2025-05-29 | Yes |
| 346-873 | HUMBLE | 6701 | 2025-06-02 | Yes |
| 346-874 | SUGAR LAND | 7074 | 2016-10-19 | Yes |
| 346-875 | HOUSTON | 7138 | 2025-06-02 | Yes |
| 346-876 | BARKER | 6701 | 2025-06-06 | Yes |
| 346-877 | DEER PARK | 965H | 2019-05-21 | Yes |
| 346-878 | LANGHAMCRK | 6506 | 2025-06-17 | Yes |
| 346-879 | HOUSTON | 700J | 2025-07-18 | Yes |
| 346-880 | BAMMEL | 6701 | 2025-07-21 | Yes |
| 346-881 | MONTBLVIEU | 004F | 2025-07-30 | Yes |
| 346-882 | SUGAR LAND | 6534 | 2025-08-19 | Yes |
| 346-883 | BARKER | 6701 | 2025-08-19 | Yes |
| 346-884 | HSTNSUBURB | 6534 | 2025-08-22 | Yes |
| 346-885 | LANGHAMCRK | 6506 | 2025-08-22 | Yes |
| 346-886 | RICHMNRNBG | 903C | 2025-09-03 | Yes |
| 346-887 | HOUSTON | 6506 | 2025-09-04 | Yes |
| 346-888 | HSTNSUBURB | 319D | 2014-01-15 | Yes |
| 346-889 | LANGHAMCRK | 6506 | 2025-09-05 | Yes |
| 346-890 | BAMMEL | 624H | 2025-09-16 | Yes |
| 346-891 | SUGAR LAND | 624H | 2025-09-16 | Yes |
| 346-892 | BAMMEL | 6701 | 2025-09-16 | Yes |
| 346-893 | HOUSTON | 883K | 2025-09-30 | Yes |
| 346-894 | STAFFORD | 6701 | 2025-10-14 | Yes |
| 346-895 | HOUSTON | 506J | 2020-08-05 | Yes |
| 346-896 | HUMBLE | 6701 | 2025-10-27 | Yes |
| 346-897 | BAMMEL | 6701 | 2025-11-05 | Yes |
| 346-898 | HOUSTON | 6506 | 2025-11-12 | Yes |
| 346-899 | STAFFORD | 965H | 2020-08-19 | 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.