All assignees
81 prefixes in 340 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 340-200 | CHTAMSTTHS | 073H | 2021-07-20 | — |
| 340-201 | CHTAMSTTHS | 638J | 2008-06-06 | — |
| 340-202 | ST CROIX | 128J | 2018-01-09 | — |
| 340-203 | CHTAMSTTHS | 6529 | 2020-12-22 | — |
| 340-204 | CHTAMSTTHS | 638J | 2023-01-09 | — |
| 340-205 | CHTAMSTTHS | 638J | 2023-01-13 | — |
| 340-206 | ST CROIX | 6214 | 2022-02-18 | — |
| 340-207 | CHTAMSTTHS | 638J | 2023-01-13 | — |
| 340-208 | ST CROIX | 6529 | 2021-02-01 | — |
| 340-209 | CHTAMSTTHS | 638J | 2021-10-19 | — |
| 340-210 | CHTAMSTTHS | 638J | 2023-01-13 | — |
| 340-211 | XXXXXXXXXX | MULT | — | — |
| 340-212 | CHTAMSTTHS | 318J | 2023-06-09 | — |
| 340-220 | CHNSTDSTCR | 346D | — | — |
| 340-226 | ST CROIX | 5562 | 2007-07-23 | — |
| 340-227 | CHTAMSTTHS | 638J | — | — |
| 340-228 | CHTAMSTTHS | 346D | — | — |
| 340-244 | CHTAMSTTHS | 638J | 2002-10-31 | — |
| 340-249 | CHTAMSTTHS | 128J | 2018-01-09 | — |
| 340-277 | ST CROIX | 6529 | 2001-08-14 | — |
| 340-311 | XXXXXXXXXX | MULT | — | — |
| 340-332 | ST CROIX | 6529 | 2003-12-16 | — |
| 340-340 | — | — | ||
| 340-344 | CHTAMSTTHS | 6529 | 2003-10-13 | — |
| 340-400 | — | — | ||
| 340-411 | XXXXXXXXXX | MULT | — | — |
| 340-422 | CHTAMSTTHS | 346D | 2009-12-29 | — |
| 340-423 | CHTAMSTTHS | 346D | 2017-09-09 | — |
| 340-444 | CHTAMSTTHS | 615H | 2015-04-27 | — |
| 340-473 | CHTAMSTTHS | 638J | — | — |
| 340-474 | CHTAMSTTHS | 638J | — | — |
| 340-489 | CHNSTDSTCR | 128J | 2018-01-09 | — |
| 340-500 | — | — | ||
| 340-511 | XXXXXXXXXX | MULT | — | — |
| 340-513 | CHTAMSTTHS | 638J | — | — |
| 340-514 | CHTAMSTTHS | 638J | — | — |
| 340-555 | DIR ASST | MULT | — | — |
| 340-611 | XXXXXXXXXX | MULT | — | — |
| 340-625 | FRKSTDSTCR | 128J | 2018-01-09 | — |
| 340-626 | CHTAMSTTHS | 638J | — | — |
| 340-642 | CHTAMSTTHS | 638J | — | — |
| 340-643 | CHTAMSTTHS | 638J | — | — |
| 340-677 | CHTAMSTTHS | 5562 | 2007-07-23 | — |
| 340-690 | CHTAMSTTHS | 638J | — | — |
| 340-692 | ST CROIX | 3300 | — | — |
| 340-693 | CHTAMSTTHS | 3300 | — | — |
| 340-700 | — | — | ||
| 340-711 | XXXXXXXXXX | MULT | — | — |
| 340-712 | CHNSTDSTCR | 3300 | — | — |
| 340-713 | CHNSTDSTCR | 3300 | — | — |
| 340-714 | CHTAMSTTHS | 3300 | — | — |
| 340-715 | CHTAMSTTHS | 3300 | — | — |
| 340-717 | CHTAMSTTHS | 346D | 2017-09-09 | — |
| 340-718 | CHNSTDSTCR | 3300 | 2006-10-26 | — |
| 340-719 | CHNSTDSTCR | 3300 | — | — |
| 340-725 | CHTAMSTTHS | 346D | 2017-09-09 | — |
| 340-727 | CHTAMSTTHS | 346D | — | — |
| 340-770 | CHTAMSTTHS | 3300 | — | — |
| 340-771 | CHTAMSTTHS | 346D | — | — |
| 340-772 | FRKSTDSTCR | 3300 | — | — |
| 340-773 | CHNSTDSTCR | 3300 | — | — |
| 340-774 | CHTAMSTTHS | 3300 | — | — |
| 340-775 | CHTAMSTTHS | 3300 | — | — |
| 340-776 | CHTAMSTTHS | 3300 | — | — |
| 340-777 | CHTAMSTTHS | 3300 | — | — |
| 340-778 | CHTAMSTTHS | 3300 | — | — |
| 340-779 | CHTAMSTTHS | 3300 | — | — |
| 340-800 | — | — | ||
| 340-811 | XXXXXXXXXX | MULT | — | — |
| 340-884 | CHTAMSTTHS | 6915 | — | — |
| 340-888 | — | — | ||
| 340-900 | — | — | ||
| 340-911 | XXXXXXXXXX | MULT | — | — |
| 340-913 | — | — | ||
| 340-917 | — | — | ||
| 340-950 | — | — | ||
| 340-958 | — | — | ||
| 340-959 | — | — | ||
| 340-976 | — | — | ||
| 340-988 | — | — | ||
| 340-998 | CHTAMSTTHS | 6529 | 2001-08-14 | — |
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.