NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

357 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 27
ONVOY, LLC - NJ 20
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
2002-04-02 914-494 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
2002-04-02 918-829 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2002-04-02 918-839 1XXX5XXX6XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTEAU OK
2002-04-02 928-999 not yet reported which blocks → MIDVALE TELEPHONE EXCHANGE, INC. 2226 MILLSITE AZ
2002-04-02 937-770 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 BROOKVILLE OH
2002-04-02 937-771 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ENGLEWOOD OH
2002-04-01 218-368 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 BEMIDJI MN
2002-04-01 662-292 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SENATOBIA MS
2002-04-01 718-216 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN09 NY
2002-04-01 774-460 0–9 XXXall 10 · 8 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F BLACKSTONE MA
2002-04-01 858-602 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 POWAY CA
2002-04-01 989-549 not yet reported which blocks → THUMB CELLULAR LP 6718 PIGEON MI
2002-03-29 231-570 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FIFE LAKE MI
2002-03-29 231-675 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BOYNE CITY MI
2002-03-29 231-838 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PETOSKEY MI
2002-03-29 419-671 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-03-29 517-667 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CHARLOTTE MI
2002-03-29 903-229 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CORSICANA TX
2002-03-29 936-776 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LIBERTY TX
2002-03-29 940-468 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MINERLWLLS TX
2002-03-29 956-242 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LAREDO TX
2002-03-29 979-353 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRENHAM TX
2002-03-29 979-399 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HEMPSTEAD TX
2002-03-29 979-488 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WHARTON TX
2002-03-29 979-633 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COLUMBUS TX
2002-03-29 979-635 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL CAMPO TX
2002-03-28 208-757 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 IDAHOFALLS ID
2002-03-28 208-760 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 POCATELLO ID
2002-03-28 208-919 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 BOISE ID
2002-03-28 208-948 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → T-MOBILE USA, INC. 6529 TWIN FALLS ID
2002-03-28 224-622 not yet reported which blocks → T-MOBILE USA, INC. 6529 BARRINGTON IL
2002-03-28 239-829 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J CAPE CORAL FL
2002-03-28 250-201 not yet reported which blocks → TELUS Mobility 8301 Campbell River —
2002-03-28 250-206 not yet reported which blocks → TELUS Mobility 8301 Port Alberni —
2002-03-28 250-207 not yet reported which blocks → TELUS Mobility 8301 Courtenay —
2002-03-28 254-488 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EASTLAND TX
2002-03-28 317-945 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 INDIANAPLS IN
2002-03-28 319-242 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → AT&T - LOCAL 7421 CEDARFALLS IA
2002-03-28 352-235 3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 KEYSTN HTS FL
2002-03-28 409-877 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GALVESTON TX
2002-03-28 419-676 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-03-28 432-955 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 SEMINOLE TX
2002-03-28 478-246 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 DUBLIN GA
2002-03-28 478-247 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 SANDERSVL GA
2002-03-28 518-726 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 7 holders which blocks → METROPCS, INC. 5562 PLATTSBG NY
2002-03-28 586-623 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ROMEO MI
2002-03-28 604-208 not yet reported which blocks → TELUS Mobility 8301 Powell River —
2002-03-28 660-672 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MO 4932 BOONVILLE MO
2002-03-28 660-675 0XXX1XXX3XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MO 4932 BROOKFIELD MO
2002-03-28 660-677 1XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ARMSTRONG MO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.