NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2012-02-02 440-208 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2012-02-02 440-314 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2012-02-02 614-650 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
2012-02-01 438-491 not yet reported which blocks → Videotron Ltd. 328F Montreal —
2012-02-01 438-492 not yet reported which blocks → Videotron Ltd. 328F Montreal —
2012-02-01 470-239 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 CUMMING GA
2012-02-01 502-528 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 LOUISVILLE KY
2012-02-01 502-612 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 LOUISVILLE KY
2012-02-01 502-771 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 BLOOMFIELD KY
2012-02-01 614-701 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
2012-02-01 631-402 0–9 XXXall 10 · 5 holders which blocks → TELENGY L.L.C. - NY 473G BRENTWOOD NY
2012-02-01 716-671 0–9 XXXall 10 · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WESTSENECA NY
2012-02-01 716-768 0–9 XXXall 10 · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BUFFALO NY
2012-02-01 775-404 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NV 7376 FERNLEY NV
2012-02-01 845-767 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CONGERS NY
2012-02-01 901-207 0–9 XXXall 10 · 4 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2012-02-01 904-330 0–9 XXXall 10 · 4 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-02-01 904-423 0–9 XXXall 10 · 5 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-02-01 913-214 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J KANSASCITY KS
2012-02-01 914-326 0–9 XXXall 10 · 6 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 PLEASANTVL NY
2012-01-31 352-405 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRONSON FL
2012-01-31 513-516 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2012-01-31 513-601 0–9 XXXall 10 · 3 holders which blocks → CINCINNATI BELL 9348 CINCINNATI OH
2012-01-31 806-208 4XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HEDLEY TX
2012-01-31 832-610 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SPRING TX
2012-01-31 832-612 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 RICHMNRNBG TX
2012-01-31 870-412 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MONTICELLO AR
2012-01-31 870-551 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AR 5179 W MEMPHIS AR
2012-01-31 954-505 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E HOLLYWOOD FL
2012-01-30 201-957 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2012-01-30 208-907 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - ID 192F WEISER ID
2012-01-30 270-861 0–9 XXXall 10 · 7 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 GLASGOW KY
2012-01-30 270-870 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 HODGENVL KY
2012-01-30 270-891 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 CLARKSON KY
2012-01-30 270-937 0–9 XXXall 10 · 8 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 CAMPBELSVL KY
2012-01-30 317-601 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2012-01-30 317-617 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2012-01-30 360-949 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2012-01-30 404-692 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
2012-01-30 415-528 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFC JUNPR CA
2012-01-30 575-264 not yet reported which blocks → PVT NETWORKS, INC. - NM 438D HOBBS NM
2012-01-30 585-369 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2012-01-30 606-254 0–9 XXXall 10 · 4 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 MEADS KY
2012-01-30 606-292 0XXX1XXX2XXX4XXX5XXX · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 FLEMINGSBG KY
2012-01-30 606-373 0XXX1XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 HAZARD KY
2012-01-30 606-401 0–9 XXXall 10 · 4 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 LONDON KY
2012-01-30 606-440 0XXX1XXX2XXX4XXX6XXX8XXX · 6 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 VANCEBURG KY
2012-01-30 606-448 0–9 XXXall 10 · 8 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 LIBERTY KY
2012-01-30 606-532 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 GARRISON KY
2012-01-30 606-543 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 EVARTS KY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.