NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
2022-01-13 805-885 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CONEJO CA
2022-01-13 805-939 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E NIPOMO CA
2022-01-13 805-974 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E EL RIO CA
2022-01-13 838-372 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GREENVILLE NY
2022-01-13 838-746 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SARATOGSPG NY
2022-01-13 839-845 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J EASTOVER SC
2022-01-13 839-887 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WILLISTON SC
2022-01-13 845-907 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 MONROE NY
2022-01-13 854-263 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ST STEPHEN SC
2022-01-13 854-663 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PINEVILLE SC
2022-01-13 863-746 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAKE WALES FL
2022-01-13 864-783 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GREER SC
2022-01-13 864-893 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WALHALLA SC
2022-01-13 865-464 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ROCKWOOD TN
2022-01-13 865-563 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MAYNARDVL TN
2022-01-13 865-625 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CONCORD TN
2022-01-13 865-669 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DANDRIDGE TN
2022-01-13 865-832 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SEVIERVL TN
2022-01-13 865-837 0XXX1XXX4XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BEAN STATN TN
2022-01-13 865-874 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LOUDON TN
2022-01-13 865-876 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J POWELL TN
2022-01-13 870-840 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA AR
2022-01-13 870-846 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AR 196F ASHDOWN AR
2022-01-13 870-848 0XXX3XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOPE AR
2022-01-13 912-742 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J POOLER GA
2022-01-13 917-619 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN06 NY
2022-01-13 917-998 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2022-01-13 928-878 0XXX7XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GILA BEND AZ
2022-01-13 929-675 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NWYRCYZN06 NY
2022-01-13 929-694 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN07 NY
2022-01-13 930-866 2XXX6XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J HENRYVILLE IN
2022-01-13 936-837 4XXX which blocks → TON80 COMMUNICATIONS, LLC 516J COLDSPRING TX
2022-01-13 940-837 3XXX4XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J FORESTBURG TX
2022-01-13 952-866 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NORWOOD MN
2022-01-13 959-466 0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WASHINGTON CT
2022-01-13 959-675 3XXX5XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NORFOLK CT
2022-01-13 959-866 0XXX2XXX3XXX5XXX6XXX8XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CANTON CT
2022-01-13 959-966 0XXX4XXX5XXX6XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAKEVILLE CT
2022-01-13 970-937 0XXX1XXX2XXX3XXX4XXX6XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DE BEQUE CO
2022-01-13 979-866 2XXX6XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CHURCHILL TX
2022-01-13 980-934 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WADESBORO NC
2022-01-13 984-826 0XXX1XXX2XXX4XXX5XXX7XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GRANTHAM NC
2022-01-13 985-866 0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SOUTHOSYKA LA
2022-01-13 986-242 0XXX1XXX2XXX4XXX6XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ABERDEEN ID
2022-01-13 986-326 4XXX which blocks → TON80 COMMUNICATIONS, LLC 516J KILGORE ID
2022-01-13 986-342 6XXX which blocks → TON80 COMMUNICATIONS, LLC 516J HOLLISTER ID
2022-01-13 986-426 4XXX which blocks → TON80 COMMUNICATIONS, LLC 516J ISLANDPARK ID
2022-01-13 986-546 4XXX which blocks → TON80 COMMUNICATIONS, LLC 516J HOLBROOK ID
2022-01-13 986-636 1XXX3XXX4XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J KOOSKIA ID
2022-01-13 986-642 0XXX1XXX2XXX6XXX8XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CAREY ID

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.