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
2021-04-12 607-447 4XXX5XXX6XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H MCLEAN NY
2021-04-12 607-706 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H CHERRY VLY NY
2021-04-12 607-787 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H EDMESTON NY
2021-04-12 608-746 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J JANESVILLE WI
2021-04-12 680-277 0XXX1XXX2XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H MEXICO NY
2021-04-12 743-225 0XXX2XXX3XXX4XXX5XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H JULIAN NC
2021-04-12 743-226 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → ONVOY, LLC - NC 638E MONTICELLO NC
2021-04-12 743-228 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E SUMMERFLD NC
2021-04-12 743-795 0XXX1XXX2XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MONTICELLO NC
2021-04-12 775-550 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H RENO NV
2021-04-12 779-867 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → COMMIO, LLC 939H ROCKFORD IL
2021-04-12 779-990 0XXX which blocks → COMMIO, LLC 939H FORREST IL
2021-04-12 806-860 0XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → COMMIO, LLC 939H LUBBOCK TX
2021-04-12 848-882 0–9 XXXall 10 · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H HOLMDEL NJ
2021-04-12 848-884 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H ENGLISHTN NJ
2021-04-12 850-985 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → COMMIO, LLC 939H PENSACOLA FL
2021-04-12 862-562 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H HAWTHORNE NJ
2021-04-12 878-598 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AMBRIDGE PA
2021-04-12 912-837 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HINESVILLE GA
2021-04-12 915-277 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-04-12 915-505 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H EL PASO TX
2021-04-12 929-581 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN05 NY
2021-04-12 929-693 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NWYRCYZN11 NY
2021-04-12 940-990 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H WICHITAFLS TX
2021-04-12 947-327 3XXX which blocks → TON80 COMMUNICATIONS, LLC 516J ORTONVILLE MI
2021-04-12 949-665 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2021-04-12 951-629 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 HEMT SNJC CA
2021-04-12 956-634 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C MERCEDES TX
2021-04-12 956-937 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAREDO TX
2021-04-12 971-396 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-04-12 971-837 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BEAVERTON OR
2021-04-12 979-837 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ANGLETON TX
2021-04-09 352-952 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → COMMIO, LLC 939H GAINESVL FL
2021-04-09 386-886 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → COMMIO, LLC 939H DAYTONABCH FL
2021-04-09 680-268 2XXX3XXX6XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H DOLGEVILLE NY
2021-04-09 680-844 4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H EDWARDS NY
2021-04-09 680-870 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H LITTLE FLS NY
2021-04-09 680-880 1XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H MARION NY
2021-04-09 689-867 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H ORLANDO FL
2021-04-08 202-984 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - DC 074F WSHNGTNZN1 DC
2021-04-08 262-734 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J RACINE WI
2021-04-08 262-793 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WAUKESHA WI
2021-04-08 351-218 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
2021-04-08 385-866 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PROVO UT
2021-04-08 401-910 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - RI 977E PROVIDENCE RI
2021-04-08 478-870 0–9 XXXall 10 · 7 holders which blocks → COMMIO, LLC 939H MACON GA
2021-04-08 513-905 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2021-04-08 517-770 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H LANSING MI
2021-04-08 531-262 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2021-04-08 534-254 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WAUPACA WI

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.