NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 152
ONVOY, LLC - KY 110
NEW CINGULAR WIRELESS PCS, LLC - GA 98
LEVEL 3 COMMUNICATIONS, LLC - KY 63
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 57
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2026-07-22 270-420 0XXX which blocks → VOIP INNOVATIONS, LLC 597F HOPKINSVL KY
2026-02-19 270-910 0XXX1XXX which blocks → ONVOY, LLC - KY 896E AUBURN KY
2025-12-29 270-654 1XXX which blocks → E. RITTER COMMUNICATIONS, LLC 128L OWENSBORO KY
2025-04-29 270-930 0XXX which blocks → BANDWIDTH.COM CLEC, LLC - KY 987E MADISONVL KY
2025-04-08 270-502 0XXX which blocks → ONVOY, LLC - KY 896E CECILIA KY
2024-02-12 270-270 0XXX1XXX2XXX4XXX7XXX8XXX · 2 holders which blocks → COMMIO, LLC 939H SO HARDIN KY
2023-06-30 270-364 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - KY 896E LEWISPORT KY
2023-02-09 270-414 0–9 XXXall 10 · 2 holders which blocks → NUSO, LLC 732J OWENSBORO KY
2022-11-07 270-391 0–9 XXXall 10 · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PADUCAH KY
2022-09-26 270-260 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - KY 987E BESSIEBEND KY
2022-01-25 270-610 0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 CADIZ KY
2020-09-16 270-332 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → WEST KENTUCKY RURAL TELEPHONE COOPERATIVE CORPORAT 584J MADISONVL KY
2020-08-19 270-800 0XXX8XXX which blocks → FRACTEL, LLC 965H WESTPLAINS KY
2020-04-23 270-323 0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - KY 8406 MARION KY
2019-11-21 270-919 1XXX which blocks → TELNYX LLC 073H MADISONVL KY
2019-06-27 270-770 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F BOWLNGGREN KY
2019-03-12 270-807 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 OAK GROVE KY
2018-08-14 270-947 0–9 XXXall 10 · 6 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C BEAVER DAM KY
2018-03-26 270-666 0–9 XXXall 10 · 6 holders which blocks → VONAGE AMERICA LLC 197D HOPKINSVL KY
2018-03-15 270-203 0–9 XXXall 10 · 3 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 UNIONTOWN KY
2017-11-21 270-672 0XXX2XXX9XXX · 3 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 SMITHLAND KY
2017-11-16 270-552 0XXX1XXX2XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 CALVERT CY KY
2017-08-08 270-551 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - KY 987E JORDAN KY
2017-04-25 270-553 0XXX9XXX · 2 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 BARDWELL KY
2017-03-09 270-429 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - KY 896E ELKTON KY
2017-03-09 270-494 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - KY 896E ROBARDS KY
2017-03-09 270-550 0XXX1XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → ONVOY, LLC - KY 896E DRAKESBORO KY
2017-03-09 270-966 0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - KY 896E LA FAYETTE KY
2016-10-28 270-648 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K PANTHER KY
2016-10-25 270-455 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K HEBBARDSVL KY
2016-09-28 270-693 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - KY 987E JORDAN KY
2016-09-02 270-561 0XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - KY 896E MADISONVL KY
2016-08-22 270-291 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - KY 8406 CADIZ KY
2016-08-08 270-979 0–9 XXXwhole prefix which blocks → BRANDENBURG TELECOM, LLC - KY 5672 ELIZABTHTN KY
2016-01-05 270-560 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - KY 896E OAK GROVE KY
2015-10-23 270-938 0–9 XXXall 10 · 4 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C BOWLNGGREN KY
2015-06-26 270-290 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 COLUMBIA KY
2015-06-26 270-490 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 LEBANON KY
2015-06-17 270-939 0XXX9XXX · 2 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 SMITHS GRV KY
2015-04-21 270-989 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 GREENSBURG KY
2014-04-24 270-216 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J JORDAN KY
2013-03-08 270-421 0–9 XXXall 10 · 2 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C BOWLNGGREN KY
2013-03-04 270-620 0XXX1XXX · 2 holders which blocks → NUSO, LLC 551G OWENSBORO KY
2013-02-28 270-557 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 PADUCAH KY
2013-02-25 270-599 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BOWLNGGREN KY
2012-08-01 270-373 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NO GARRETT KY
2012-08-01 270-981 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K PAYNEVILLE KY
2012-06-29 270-367 0–9 XXXall 10 · 7 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 CANEYVILLE KY
2012-06-29 270-390 0–9 XXXall 10 · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K RADCLIFF KY
2012-01-30 270-861 0–9 XXXall 10 · 7 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 GLASGOW 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.