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
2022-02-28 971-766 0XXX5XXX6XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PACIFIC CY OR
2022-02-28 986-582 6XXX which blocks → TON80 COMMUNICATIONS, LLC 516J ST ANTHONY ID
2022-02-28 986-874 2XXX which blocks → TON80 COMMUNICATIONS, LLC 516J SOUTH MT ID
2022-02-28 989-767 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J VASSAR MI
2022-02-28 989-886 1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J VICKERYVL MI
2022-02-25 219-426 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HAMMOND IN
2022-02-25 219-466 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J E CHICAGO IN
2022-02-25 224-457 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2022-02-25 224-642 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ELGIN IL
2022-02-25 229-743 0XXX2XXX3XXX4XXX7XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J OCHLOCKNEE GA
2022-02-25 229-746 0XXX4XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MORVEN GA
2022-02-25 229-832 4XXX8XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J EDISON GA
2022-02-25 239-763 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J FTMYERSBCH FL
2022-02-25 240-966 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WSNGTNZN16 MD
2022-02-25 254-864 0XXX1XXX8XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F BRANDON TX
2022-02-25 302-596 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - DE 4801 WILMINGTON DE
2022-02-25 321-844 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H MELBOURNE FL
2022-02-25 331-373 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J OSWEGO IL
2022-02-25 331-627 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LOMBARD IL
2022-02-25 343-649 not yet reported which blocks → Fibernetics Corporation 464D Metcalfe —
2022-02-25 343-650 not yet reported which blocks → Fibernetics Corporation 464D Navan —
2022-02-25 343-651 not yet reported which blocks → Fibernetics Corporation 464D South Mountain —
2022-02-25 434-624 0XXX1XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CLARKSVL VA
2022-02-25 440-889 8XXX9XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MONTVILLE OH
2022-02-25 458-466 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BANDON OR
2022-02-25 480-896 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2022-02-25 530-910 0XXX1XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HAYFORK CA
2022-02-25 530-970 0XXX which blocks → TON80 COMMUNICATIONS, LLC 516J SODA SPG CA
2022-02-25 571-727 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LORTON VA
2022-02-25 572-746 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BRITTON OK
2022-02-25 582-452 0XXX1XXX5XXX6XXX8XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WINBURNE PA
2022-02-25 667-404 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 PRINCEFRCK MD
2022-02-25 669-322 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C CAMPBELL CA
2022-02-25 689-276 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LKBUNAVIST FL
2022-02-25 716-787 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NIAGARAFLS NY
2022-02-25 719-773 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ROCKY FORD CO
2022-02-25 719-993 0XXX1XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AGUILAR CO
2022-02-25 779-351 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J ROCKFORD IL
2022-02-25 908-726 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SOMERVILLE NJ
2022-02-25 910-941 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E BURGAW NC
2022-02-25 912-724 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SAVANNAH GA
2022-02-25 912-776 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J STATESBORO GA
2022-02-25 920-610 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J GREEN BAY WI
2022-02-25 931-466 0XXX4XXX6XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MCEWEN TN
2022-02-25 937-945 0XXX1XXX7XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F SOUTHSOLON OH
2022-02-25 938-368 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J FLORENCE AL
2022-02-25 938-746 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HAZELGREEN AL
2022-02-25 947-546 0XXX1XXX3XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WALLEDLAKE MI
2022-02-25 970-877 0XXX2XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAKE CITY CO
2022-02-25 970-955 0XXX1XXX5XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MANCOS CO

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.