NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, all time — NPA 270
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 270-324 | 5XXX which blocks → | SO CENTRAL RURAL TELECOMM COOPERATIVE, INC. | 0418 | MAGNOLIA | KY |
| — | 270-325 | 6XXX which blocks → | SO CENTRAL RURAL TELECOMM COOPERATIVE, INC. | 0418 | BUFFALO | KY |
| — | 270-326 | 7XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MADISONVL | KY |
| — | 270-327 | 1XXX8XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | MADISONVL | KY |
| — | 270-328 | none assigned yet which blocks → | WEST KENTUCKY RURAL TEL | 0421 | SEDALIA | KY |
| — | 270-331 | 7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | PADUCAH | KY |
| — | 270-333 | 8XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | STURGIS | KY |
| — | 270-334 | none assigned yet which blocks → | BALLARD RURAL TEL. COOP. CORP., INC. | 0396 | BARLOW | KY |
| — | 270-335 | none assigned yet which blocks → | BALLARD RURAL TEL. COOP. CORP., INC. | 0396 | WICKLIFFE | KY |
| — | 270-337 | 0XXX1XXX6XXX7XXX8XXX · 3 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | BRADFODSVL | KY |
| — | 270-338 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | GREENVILLE | KY |
| — | 270-339 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MADISONVL | KY |
| — | 270-342 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | MADISONVL | KY |
| — | 270-343 | not yet reported which blocks → | DUO COUNTY TEL. COOP., INC. | 0401 | JAMESTOWN | KY |
| — | 270-345 | 0XXX1XXX4XXX6XXX8XXX · 3 holders which blocks → | WEST KENTUCKY RURAL TEL | 0421 | FARMINGTON | KY |
| — | 270-348 | 7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | HOPKINSVL | KY |
| — | 270-349 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | PADUCAH | KY |
| — | 270-351 | not yet reported which blocks → | BRANDENBURG TEL. CO. | 0398 | RADCLIFF | KY |
| — | 270-352 | not yet reported which blocks → | BRANDENBURG TEL. CO. | 0398 | RADCLIFF | KY |
| — | 270-354 | 0XXX which blocks → | WEST KENTUCKY RURAL TEL | 0421 | FAIRDEALNG | KY |
| — | 270-355 | 1XXX3XXX4XXX7XXX · 3 holders which blocks → | ONVOY, LLC - KY | 896E | WATER VLY | KY |
| — | 270-356 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MAYFIELD | KY |
| — | 270-358 | 6XXX which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | HODGENVL | KY |
| — | 270-359 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | POWERTEL KENTUCKY LICENSES, INC. | 365C | OWENSBORO | KY |
| — | 270-360 | not yet reported which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | ELIZABTHTN | KY |
| — | 270-362 | 6XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | GILBERTSVL | KY |
| — | 270-365 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | PRINCETON | KY |
| — | 270-369 | 2XXX5XXX · 2 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | SO HARDIN | KY |
| — | 270-375 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | ONVOY, LLC - KY | 896E | CENTERTOWN | KY |
| — | 270-376 | none assigned yet which blocks → | WEST KENTUCKY RURAL TEL | 0421 | WINGO | KY |
| — | 270-377 | 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | GREENVILLE | KY |
| — | 270-378 | not yet reported which blocks → | DUO COUNTY TEL. COOP., INC. | 0401 | FAIRPLAY | KY |
| — | 270-379 | not yet reported which blocks → | DUO COUNTY TEL. COOP., INC. | 0401 | FAIRPLAY | KY |
| — | 270-382 | none assigned yet which blocks → | WEST KENTUCKY RURAL TEL | 0421 | LYNNVILLE | KY |
| — | 270-383 | 1XXX7XXX8XXX9XXX · 4 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | EARLINGTON | KY |
| — | 270-384 | not yet reported which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | COLUMBIA | KY |
| — | 270-385 | 0XXX1XXX · 2 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | COLUMBIA | KY |
| — | 270-386 | 1XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - KY | 896E | EDDYVILLE | KY |
| — | 270-388 | 3XXX8XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | EDDYVILLE | KY |
| — | 270-389 | 8XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MORGANFLD | KY |
| — | 270-392 | 2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → | POWERTEL KENTUCKY LICENSES, INC. | 365C | BOWLNGGREN | KY |
| — | 270-393 | 6XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BOWLNGGREN | KY |
| — | 270-394 | 7XXX9XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | MORGANFLD | KY |
| — | 270-395 | not yet reported which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LONDON | 9691 | CALVERT CY | KY |
| — | 270-398 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | PRINCETON | KY |
| — | 270-399 | 7XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MADISONVL | KY |
| — | 270-400 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - KY | 896E | BRADFODSVL | KY |
| — | 270-401 | 0XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ELIZABTHTN | KY |
| — | 270-402 | 6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LEBANON | KY |
| — | 270-403 | 0XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CAMPBELSVL | KY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.