NRNumberResearch Membership · Data 09/17/2026

← Area code 256

All assignees

800 prefixes in 256 · initial assignments from the NANPA CO code file, 09/17/2026

Prefixes held by all assignees in area code 256
NPA-NXXRate centerOCNAssignedPooled
256-500 ALEXANDRCY 9419 — Yes
256-501 ATHENS 5562 2002-12-26 Yes
256-502 HARTSELLE 6214 2003-03-12 Yes
256-503 HUNTSVILLE 6804 — —
256-504 GADSDEN 6804 — —
256-505 GUNTERSVL 9419 — Yes
256-506 GUNTERSVL 6214 — —
256-507 CULLMAN 6214 2003-03-12 Yes
256-508 HUNTSVILLE 6804 — —
256-509 HUNTSVILLE 6804 — —
256-510 CHILDERSBG 5562 2003-01-13 Yes
256-511 XXXXXXXXXX MULT — —
256-512 HUNTSVILLE 9419 — Yes
256-513 HUNTSVILLE 6214 2003-03-12 Yes
256-514 HUNTSVILLE 6885 — —
256-515 GADSDEN 6214 2002-10-14 Yes
256-516 FORT PAYNE 6214 2003-01-22 Yes
256-517 HUNTSVILLE 9419 — Yes
256-518 HUNTSVILLE 9419 — Yes
256-519 HUNTSVILLE 9419 — Yes
256-520 HUNTSVILLE 6214 — —
256-521 TALLADEGA 8271 — Yes
256-522 MOULTON 829J — Yes
256-523 SAND ROCK 0314 — Yes
256-524 COLLINSVL 0314 — Yes
256-525 ANNISTON 7475 — Yes
256-526 LEESBURG 0314 — Yes
256-527 HUNTSVILLE 6214 — —
256-528 CROSSVILLE 0314 — Yes
256-529 HUNTSVILLE 6214 — Yes
256-530 ANNISTON 799G 2012-08-20 Yes
256-531 CULLMAN 6804 — Yes
256-532 HUNTSVILLE 9419 — Yes
256-533 HUNTSVILLE 9419 — —
256-534 HUNTSVILLE 9419 — —
256-535 HUNTSVILLE 9419 — Yes
256-536 HUNTSVILLE 9419 — —
256-537 ALEXANDRCY 6804 — Yes
256-538 ATTALLA 9419 — —
256-539 HUNTSVILLE 9419 — —
256-540 WEDOWEE 799G 2012-08-20 Yes
256-541 HUNTSVILLE 6804 — —
256-542 MADISON 9419 2002-03-07 Yes
256-543 GADSDEN 9419 — —
256-544 HUNTSVILLE 5255 — —
256-545 GADSDEN 9419 — —
256-546 GADSDEN 9419 — —
256-547 GADSDEN 9419 — —
256-548 STEVENSON 6214 — Yes
256-549 GADSDEN 9419 — —
256-550 ARAB 6214 2003-03-25 —
256-551 HUNTSVILLE 9419 — Yes
256-552 DECATUR 9419 — Yes
256-553 GADSDEN 5562 — Yes
256-554 FLORENCE 5562 — Yes
256-555 DIR ASST MULT — —
256-556 DECATUR 6214 — Yes
256-557 CROSSVILLE 6804 2004-06-15 —
256-558 GUNTERSVL 6804 — Yes
256-559 ATHENS 6214 2003-03-18 Yes
256-560 DECATUR 9419 2003-04-02 Yes
256-561 ARONEY 0314 — Yes
256-562 HUNTSVILLE 829J — Yes
256-563 GADSDEN 6744 — Yes
256-564 HUNTSVILLE 9419 — —
256-565 DECATUR 6214 — —
256-566 DECATUR 6214 — —
256-567 COURTLAND 829J — Yes
256-568 RANBURNE 9417 — Yes
256-569 GADSDEN 9419 — Yes
256-570 ATTALLA 9419 — Yes
256-571 GUNTERSVL 9419 — Yes
256-572 GUNTERSVL 6804 — —
256-573 TOWN CREEK 829J — Yes
256-574 SCOTTSBORO 9788 — —
256-575 SCOTTSBORO 9788 — Yes
256-576 LEIGHTON 829J — Yes
256-577 ROGERSVL 6214 — Yes
256-578 RED BAY 829J — Yes
256-579 FRUITHURST 9417 — Yes
256-580 DECATUR 9419 — Yes
256-581 OHATCHEE 8271 — Yes
256-582 GUNTERSVL 9419 — —
256-583 HUNTSVILLE 6804 2017-04-10 Yes
256-584 DECATUR 9419 — Yes
256-585 HUNTSVILLE 6214 2002-04-03 Yes
256-586 ARAB 0283 — —
256-587 SKYLINE 9788 — Yes
256-588 KILLEN 829J — Yes
256-589 TALLADEGA 6804 — Yes
256-590 CULLMAN 6804 — Yes
256-591 ANNISTON 7475 2003-04-02 Yes
256-592 TALLADEGA 5562 2003-04-16 Yes
256-593 BOAZ 9419 — —
256-594 SCOTTSBORO 829J — Yes
256-595 CULLMAN 7475 2003-04-16 Yes
256-596 ALEXANDRCY 604E — Yes
256-597 BRYANT 0290 — Yes
256-598 CHILDERSBG 829J — Yes
256-599 SCOTTSBORO 6804 — —

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.