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22 prefixes in 904 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 904-217 | ST JOHNS | 318J | 2005-04-14 | Yes |
| 904-310 | FERNADNBCH | 318J | — | Yes |
| 904-342 | ST JOHNS | 318J | — | Yes |
| 904-372 | JACKSOLBCH | 318J | — | Yes |
| 904-373 | PNTVDRABCH | 318J | — | Yes |
| 904-374 | JACKSONVL | 318J | — | — |
| 904-375 | ORANGEPARK | 318J | — | Yes |
| 904-379 | JACKSONVL | 318J | — | — |
| 904-397 | MACCLENNY | 318J | 2007-04-23 | Yes |
| 904-406 | MIDDLEBURG | 318J | — | Yes |
| 904-409 | SANDERSON | 318J | 2007-04-23 | Yes |
| 904-503 | JACKSONVL | 318J | 2012-04-02 | Yes |
| 904-531 | GREENCVSPG | 318J | — | Yes |
| 904-551 | JACKSONVL | 318J | 2001-02-26 | Yes |
| 904-559 | JACKSONVL | 318J | 2015-04-30 | Yes |
| 904-606 | MIDDLEBURG | 318J | 2014-10-03 | Yes |
| 904-619 | JACKSONVL | 318J | — | — |
| 904-628 | CALLAHAN | 318J | 2006-03-14 | Yes |
| 904-647 | JACKSONVL | 318J | 2005-12-29 | Yes |
| 904-683 | JACKSONVL | 318J | — | — |
| 904-748 | MAXVILLE | 318J | 2005-05-26 | Yes |
| 904-961 | KINGSLEYLK | 318J | 2025-04-03 | 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.