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
256-300 CENTRE 6804 2004-12-01 Yes
256-301 DECATUR 9419 — Yes
256-302 GUNTERSVL 6804 2001-01-05 Yes
256-303 DECATUR 6804 — —
256-304 FORT PAYNE 829J — Yes
256-305 ATTALLA 7475 2001-01-29 Yes
256-306 DECATUR 9419 — Yes
256-307 DADEVILLE 6804 2003-02-05 Yes
256-308 DECATUR 9419 — Yes
256-309 DECATUR 9419 — Yes
256-310 ANNISTON 5562 — Yes
256-311 XXXXXXXXXX MULT — —
256-312 GADSDEN 7475 — Yes
256-313 HUNTSVILLE 7451 — —
256-314 SHEFFIELD 9419 — Yes
256-315 TALLADEGA 9419 — Yes
256-316 HUNTSVILLE 6214 — Yes
256-317 ARAB 0283 — —
256-318 DECATUR 6214 — —
256-319 MADISON 7451 — —
256-320 SHEFFIELD 5562 2001-01-29 Yes
256-321 ATHENS 6214 — —
256-322 TALLADEGA 7475 — Yes
256-323 HUNTSVILLE 5562 — Yes
256-324 RUSSELLVL 6804 — Yes
256-325 MADISON 961J — —
256-326 HUNTSVILLE 6214 — Yes
256-327 HUNTSVILLE 7451 — —
256-328 GADSDEN 7475 2001-04-17 Yes
256-329 ALEXANDRCY 9419 — Yes
256-330 OHATCHEE 5562 2001-01-29 Yes
256-331 RUSSELLVL 9419 — Yes
256-332 RUSSELLVL 9419 — —
256-333 RED BAY 5255 2004-10-28 Yes
256-334 ALBERTVL 7475 — Yes
256-335 FLORENCE 7475 — —
256-336 HUNTSVILLE 7451 2012-07-09 Yes
256-337 HUNTSVILLE 7475 — —
256-338 CULLMAN 6804 2001-02-27 —
256-339 CULLMAN 6804 — —
256-340 DECATUR 9419 — Yes
256-341 DECATUR 9419 — Yes
256-342 ANNISTON 8271 — Yes
256-343 ANNISTON 6214 2001-07-26 Yes
256-344 ATTALLA 8271 — Yes
256-345 DECATUR 7475 2001-04-11 —
256-346 CHILDERSBG 8271 — Yes
256-347 CULLMAN 6214 2001-04-21 Yes
256-348 HUNTSVILLE 7475 2001-04-11 —
256-349 FLORENCE 5562 2001-04-26 Yes
256-350 DECATUR 9419 — —
256-351 DECATUR 9419 — Yes
256-352 HANCEVILLE 9419 — Yes
256-353 DECATUR 9419 — —
256-354 ASHLAND 9789 — —
256-355 DECATUR 9419 — —
256-356 RED BAY 9419 — Yes
256-357 WEDOWEE 9789 — Yes
256-358 MUNFORD 9419 — Yes
256-359 CHEROKEE 0286 — Yes
256-360 CHEROKEE 0286 — Yes
256-361 HUNTSVILLE 8271 — Yes
256-362 TALLADEGA 9419 — —
256-363 MRNSCRSRDS 9789 — Yes
256-364 FORT PAYNE 5562 2002-12-31 Yes
256-365 JACKSONVL 8271 — Yes
256-366 FLORENCE 6804 — —
256-367 FLORENCE 318J — Yes
256-368 TALLADEGA 6804 — Yes
256-369 SYLACAUGA 5255 2002-08-28 Yes
256-370 CHEROKEE 0286 — Yes
256-371 ANNISTON 7475 2001-04-21 Yes
256-372 HUNTSVILLE 9419 2002-03-21 —
256-373 DADEVILLE 8271 — Yes
256-374 ATHENS 7475 2002-12-31 Yes
256-375 TALLADEGA 6214 2002-04-03 Yes
256-376 RED BAY 058J 2017-07-11 Yes
256-377 ROCKFORD 9789 — Yes
256-378 CHILDERSBG 9419 — Yes
256-379 NEW MARKET 0280 — —
256-380 SKYLINE 829J 2001-10-22 Yes
256-381 SHEFFIELD 9419 — —
256-382 HUNTSVILLE 829J — —
256-383 SHEFFIELD 9419 — —
256-384 HUNTSVILLE 072F — Yes
256-385 CULLMAN 6214 — Yes
256-386 SHEFFIELD 9419 — —
256-387 HARTSELLE 6804 2017-07-11 Yes
256-388 ALBERTVL 7475 2002-12-31 Yes
256-389 SHEFFIELD 9419 — —
256-390 GADSDEN 6214 — —
256-391 SYLACAUGA 5255 2002-01-31 Yes
256-392 ALEXANDRCY 7421 2001-09-10 Yes
256-393 GADSDEN 6214 — —
256-394 FLORENCE 7475 2001-04-11 —
256-395 WADLEY 9789 — —
256-396 LINEVILLE 9789 — Yes
256-397 ALEXANDRCY 829J — Yes
256-398 RUSSELLVL 7475 2001-09-26 Yes
256-399 GADSDEN 5255 2001-11-05 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.