NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 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 19
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
2020-11-04 747-944 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H RESEDA CA
2020-11-04 747-955 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H SNFN PACM CA
2020-11-04 769-701 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - MS 719E ENTERPRISE MS
2020-11-04 769-770 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MS 719E CLINTON MS
2020-11-04 769-780 1XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - MS 719E SEMINARY MS
2020-11-04 769-790 1XXX2XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - MS 719E LUMBERTON MS
2020-11-04 779-334 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DE KALB IL
2020-11-04 786-396 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E NORTH DADE FL
2020-11-04 786-432 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E PERRINE FL
2020-11-04 820-842 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H OAKVIEW CA
2020-11-04 848-297 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F BOUNDBROOK NJ
2020-11-04 928-837 0XXX1XXX2XXX3XXX4XXX6XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J YUCCA AZ
2020-11-04 939-600 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEUTRAL TANDEM - PR 559F PUEBLOVIEJ PR
2020-11-04 939-610 0–9 XXXall 10 · 3 holders which blocks → NEUTRAL TANDEM - PR 559F BAYAMONSUR PR
2020-11-04 941-338 0–9 XXXwhole prefix which blocks → TERRA NOVA TELECOM, INC. - FL 382G BRADENTON FL
2020-11-04 971-385 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OR 076F NEWBERG OR
2020-11-03 231-281 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CADILLAC MI
2020-11-03 252-408 0–9 XXXall 10 · 3 holders which blocks → AIRESPRING, INC. 996H GREENVILLE NC
2020-11-03 279-336 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H RSVL MAIN CA
2020-11-03 279-842 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H FOLSOM CA
2020-11-03 314-887 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2020-11-03 316-372 0–9 XXXall 10 · 3 holders which blocks → AIRESPRING, INC. 996H WICHITA KS
2020-11-03 412-783 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN16 PA
2020-11-03 470-640 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2020-11-03 470-696 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2020-11-03 509-602 0XXX1XXX5XXX · 3 holders which blocks → COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 CONNELL WA
2020-11-03 509-605 5XXX6XXX · 2 holders which blocks → COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 WILBUR WA
2020-11-03 530-702 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 WOODLAND CA
2020-11-03 602-767 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AZ 587F PHOENIX AZ
2020-11-03 619-759 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CHULAVISTA CA
2020-11-03 628-786 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SNFC JUNPR CA
2020-11-03 669-946 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS SOUTH CA
2020-11-03 802-214 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VT 451F BLOOMFIELD VT
2020-11-03 802-215 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VT 451F ESSEX JCT VT
2020-11-03 810-264 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLCV - MI 543C MEMPHIS MI
2020-11-03 825-853 not yet reported which blocks → Fibernetics Corporation 464D Calgary —
2020-11-03 906-263 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLCV - MI 543C SALTSTMARI MI
2020-11-03 925-578 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ECONTRCOST CA
2020-11-03 949-989 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H LAGUNA BCH CA
2020-11-03 980-327 0–9 XXXall 10 · 3 holders which blocks → AIRESPRING, INC. 996H CHARLOTTE NC
2020-11-02 321-344 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E MELBOURNE FL
2020-11-02 431-841 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2020-11-02 437-277 not yet reported which blocks → Bell Mobility 6574 Toronto —
2020-11-02 437-629 not yet reported which blocks → Bell Mobility 6574 Toronto —
2020-11-02 438-437 not yet reported which blocks → Bell Mobility 6574 Montreal —
2020-11-02 438-485 not yet reported which blocks → Bell Mobility 6574 Montreal —
2020-11-02 469-922 0–9 XXXall 10 · 4 holders which blocks → GRANDE COMMUNICATIONS NETWORKS, INC. - TX 7670 FRISCO TX
2020-11-02 747-298 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2020-11-02 825-392 not yet reported which blocks → Bell Mobility 6574 Calgary —
2020-11-02 825-716 not yet reported which blocks → Bell Mobility 6574 Calgary —

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.