NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
2022-02-25 669-322 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
2022-02-25 970-993 0XXX1XXX2XXX3XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MARVEL CO
2022-02-25 971-588 2XXX3XXX5XXX7XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GARIBALDI OR
2022-02-25 971-677 0XXX1XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MILL CITY OR
2022-02-25 971-966 1XXX6XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GRAND IS OR
2022-02-24 218-627 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HILL CITY MN
2022-02-24 218-868 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LITTLEFORK MN
2022-02-24 218-942 2XXX6XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CHISHOLM MN
2022-02-24 219-727 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LA PORTE IN
2022-02-24 219-993 0XXX3XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WESTVILLE IN
2022-02-24 254-481 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F BRECKENRDG TX
2022-02-24 269-724 1XXX3XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J VICKSBURG MI
2022-02-24 279-867 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H ELK GROVE CA
2022-02-24 318-993 0XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J TULLOS LA
2022-02-24 319-588 1XXX2XXX5XXX8XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ARGYLE IA
2022-02-24 319-742 2XXX6XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DENMARK IA
2022-02-24 320-627 0XXX1XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ROYALTON MN
2022-02-24 320-887 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BENSON MN
2022-02-24 337-574 0–9 XXXall 10 · 3 holders which blocks → VOICESTREAM GSM I, LLC 150C DE RIDDER LA
2022-02-24 337-748 0XXX1XXX3XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WASHINGTON LA
2022-02-24 343-646 not yet reported which blocks → Fibernetics Corporation 464D Bourget —
2022-02-24 343-647 not yet reported which blocks → Fibernetics Corporation 464D Chesterville —
2022-02-24 343-648 not yet reported which blocks → Fibernetics Corporation 464D Crysler —
2022-02-24 385-526 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CLEARFIELD UT
2022-02-24 385-644 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BOUNTIFUL UT
2022-02-24 385-746 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LEHI UT
2022-02-24 385-832 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AMERCNFORK UT
2022-02-24 413-966 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NORTHAMPTN MA
2022-02-24 414-307 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2022-02-24 435-567 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J RICHFIELD UT
2022-02-24 435-569 0XXX6XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MOAB UT
2022-02-24 445-238 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2022-02-24 445-240 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.