ONVOY, LLC - CT
64 prefixes in 475 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 475-203 | WALLINGFD | 639C | 2023-06-14 | Yes |
| 475-244 | CHESHIRE | 639C | 2018-02-21 | Yes |
| 475-264 | DARIEN | 639C | — | Yes |
| 475-269 | HUNTINGTON | 639C | 2015-05-21 | Yes |
| 475-270 | WALLINGFD | 639C | 2020-05-28 | Yes |
| 475-271 | MILFORD | 639C | 2020-06-12 | Yes |
| 475-275 | BYRAM | 639C | 2016-02-22 | Yes |
| 475-293 | WALLINGFD | 639C | 2021-06-24 | Yes |
| 475-294 | MILFORD | 639C | 2021-07-21 | Yes |
| 475-302 | BRIDGEPORT | 639C | 2021-10-05 | Yes |
| 475-304 | HUNTINGTON | 639C | 2021-10-05 | Yes |
| 475-324 | TRUMBULL | 639C | 2023-06-23 | Yes |
| 475-334 | STAMFORD | 639C | 2023-07-12 | Yes |
| 475-335 | GREENWICH | 639C | 2023-07-26 | Yes |
| 475-340 | OLDGRNWICH | 639C | 2023-09-06 | Yes |
| 475-346 | STAMFORD | 639C | 2023-12-08 | Yes |
| 475-352 | NEW HAVEN | 639C | 2024-01-11 | Yes |
| 475-354 | WATERBURY | 639C | 2024-01-25 | Yes |
| 475-357 | MILFORD | 639C | 2024-01-30 | Yes |
| 475-358 | BRANFORD | 639C | 2024-02-02 | Yes |
| 475-360 | NEWTOWN | 639C | 2024-02-02 | Yes |
| 475-361 | CHESHIRE | 639C | 2024-02-02 | Yes |
| 475-362 | SEYMOUR | 639C | 2024-02-21 | Yes |
| 475-363 | WESTPORT | 639C | 2024-02-21 | Yes |
| 475-364 | WOODBURY | 639C | 2024-02-21 | Yes |
| 475-365 | NEW HAVEN | 639C | 2024-03-28 | Yes |
| 475-367 | BYRAM | 639C | 2024-03-28 | Yes |
| 475-368 | DARIEN | 639C | 2024-05-01 | Yes |
| 475-369 | HUNTINGTON | 639C | 2024-05-15 | Yes |
| 475-372 | NEW HAVEN | 639C | 2024-06-18 | Yes |
| 475-373 | BRIDGEPORT | 639C | 2024-06-21 | Yes |
| 475-375 | NEW HAVEN | 639C | 2023-06-14 | Yes |
| 475-381 | WALLINGFD | 639C | 2024-10-14 | Yes |
| 475-383 | GREENWICH | 639C | 2024-11-21 | Yes |
| 475-384 | NEW HAVEN | 639C | 2024-11-21 | Yes |
| 475-391 | BRIDGEPORT | 639C | 2025-04-08 | Yes |
| 475-392 | NEW HAVEN | 639C | 2025-04-16 | Yes |
| 475-398 | HUNTINGTON | 639C | 2025-12-12 | Yes |
| 475-400 | STAMFORD | 639C | 2017-11-21 | Yes |
| 475-401 | GUILFORD | 639C | 2026-07-30 | Yes |
| 475-402 | NEW HAVEN | 639C | 2026-08-06 | Yes |
| 475-403 | WATERBURY | 639C | 2026-08-06 | Yes |
| 475-404 | ANSONIDRBY | 639C | 2026-09-09 | Yes |
| 475-405 | CHESHIRE | 639C | 2020-05-28 | Yes |
| 475-445 | NEWTOWN | 639C | 2020-06-11 | Yes |
| 475-454 | DANBURY | 639C | 2020-10-26 | Yes |
| 475-465 | OLDGRNWICH | 639C | — | Yes |
| 475-470 | NORWALK | 639C | 2016-02-11 | Yes |
| 475-471 | WESTPORT | 639C | 2019-07-15 | Yes |
| 475-472 | WILTON | 639C | 2019-07-15 | Yes |
| 475-473 | WOODBURY | 639C | 2019-07-15 | Yes |
| 475-474 | TRUMBULL | 639C | 2021-02-04 | Yes |
| 475-476 | BRIDGEPORT | 639C | 2019-03-26 | Yes |
| 475-477 | STAMFORD | 639C | 2019-12-17 | Yes |
| 475-500 | GREENWICH | 639C | 2019-07-15 | Yes |
| 475-501 | GEORGETOWN | 639C | 2020-06-11 | Yes |
| 475-575 | RIDGEFIELD | 639C | 2020-05-13 | Yes |
| 475-600 | SEYMOUR | 639C | 2019-07-15 | Yes |
| 475-775 | MERIDEN | 639C | 2016-02-05 | Yes |
| 475-800 | NEW HAVEN | 639C | 2017-09-28 | Yes |
| 475-900 | GUILFORD | 639C | 2019-07-15 | Yes |
| 475-996 | MILFORD | 639C | 2026-08-27 | Yes |
| 475-997 | CHESHIRE | 639C | 2026-07-21 | Yes |
| 475-998 | FAIRFIELD | 639C | 2026-07-08 | 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.