NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

341 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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
2022-02-24 878-782 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HOOKSTOWN PA
2022-02-24 908-742 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PLAINFIELD NJ
2022-02-24 912-782 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BRUNSWICK GA
2022-02-24 928-836 2XXX3XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HEBER AZ
2022-02-24 947-339 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NORTHVILLE MI
2022-02-24 951-668 0XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J IDYLLWILD CA
2022-02-24 951-998 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HEMT HMLD CA
2022-02-24 970-868 0XXX1XXX5XXX8XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HTSLPHRSPG CO
2022-02-24 970-997 0XXX1XXX2XXX3XXX5XXX6XXX8XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J KREMMLING CO
2022-02-24 972-970 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C GRANDPRARI TX
2022-02-24 985-488 0XXX1XXX2XXX3XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PEARLINGTN LA
2022-02-24 989-812 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PINCONNING MI
2022-02-23 213-726 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LSAN DA 13 CA
2022-02-23 220-224 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 ATHENS OH
2022-02-23 224-837 0XXX4XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GLENCOE IL
2022-02-23 331-283 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 GENEVA IL
2022-02-23 413-843 0XXX3XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LENOX MA
2022-02-23 413-872 2XXX which blocks → TON80 COMMUNICATIONS, LLC 516J DALTON MA
2022-02-23 413-933 1XXX3XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MONROE BDG MA
2022-02-23 440-909 1XXX2XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MESOPOTMIA OH
2022-02-23 440-928 7XXX8XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CONNEAUT OH
2022-02-23 447-229 0XXX2XXX4XXX6XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 HULL IL
2022-02-23 447-466 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CHATHAM IL
2022-02-23 447-837 0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BUFFALO IL
2022-02-23 458-582 0XXX1XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AZALEA OR
2022-02-23 458-763 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ASHLAND OR
2022-02-23 458-783 1XXX7XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DEPOE BAY OR
2022-02-23 463-270 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FISHERS IN
2022-02-23 463-687 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ACTON IN
2022-02-23 463-837 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MOORESVL IN
2022-02-23 530-880 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ORLAND CA
2022-02-23 530-967 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PLVL SOUTH CA
2022-02-23 539-281 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BROKENARRW OK
2022-02-23 548-981 not yet reported which blocks → Fibernetics Corporation 464D Burford —
2022-02-23 548-982 not yet reported which blocks → Fibernetics Corporation 464D Lynden —
2022-02-23 572-220 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 STILLWATER OK
2022-02-23 574-768 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ELKHART IN
2022-02-23 575-294 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2022-02-23 620-589 0XXX1XXX9XXX · 3 holders which blocks → SOUTH CENTRAL WIRELESS DBA SC TELCOM - KS 4548 CUNNINGHAM KS
2022-02-23 620-774 0XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HARTFORD KS
2022-02-23 629-283 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WHITEHOUSE TN
2022-02-23 629-426 0XXX1XXX2XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GREENBRIER TN
2022-02-23 629-746 0XXX1XXX2XXX3XXX7XXX8XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SCUNNINGHA TN
2022-02-23 629-966 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ASHLAND CY TN
2022-02-23 639-561 not yet reported which blocks → Fibernetics Corporation 464D Regina —
2022-02-23 639-562 not yet reported which blocks → Fibernetics Corporation 464D Saskatoon —
2022-02-23 765-757 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANDERSON IN
2022-02-23 779-625 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WOODSTOCK IL
2022-02-23 782-370 not yet reported which blocks → Bell Mobility Aliant 329A Truro —
2022-02-23 820-799 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H CAMARILLO CA

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.