NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 20
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
2022-10-26 365-276 not yet reported which blocks → ISP Telecom Inc. 4727 Tottenham —
2022-10-26 438-467 not yet reported which blocks → Bell Mobility 6574 Montreal —
2022-10-26 480-915 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2022-10-26 502-877 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H LAWRENCEBG KY
2022-10-26 505-534 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 AZTEC NM
2022-10-26 672-730 not yet reported which blocks → Bell Mobility 6574 Nelson —
2022-10-26 826-208 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WINCHESTER VA
2022-10-26 859-867 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H COVINGTON KY
2022-10-26 931-921 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TN 525E CROSSVILLE TN
2022-10-25 223-338 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E LEOLA PA
2022-10-25 223-432 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E FAYETTEVL PA
2022-10-25 272-303 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSTON PA
2022-10-25 272-327 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E WHITEHAVEN PA
2022-10-25 272-922 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → COMMIO, LLC 939H SELINSGRV PA
2022-10-25 385-491 0–9 XXXall 10 · 3 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SALT LAKE UT
2022-10-25 479-867 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H FORT SMITH AR
2022-10-25 559-995 1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → COMMIO, LLC 939H DEL REY CA
2022-10-25 667-417 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MD 071F GLENBURNIE MD
2022-10-25 731-867 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H PARIS TN
2022-10-25 760-229 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2022-10-25 760-649 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C ENCINITAS CA
2022-10-25 769-294 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → METROPCS, INC. 5562 LAUREL MS
2022-10-25 772-279 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H VERO BEACH FL
2022-10-25 845-919 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC- NY 384C OTISVILLE NY
2022-10-25 845-923 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C MONROE NY
2022-10-25 856-525 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILLVILLE NJ
2022-10-25 860-743 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CT 639C MANCHESTER CT
2022-10-25 904-870 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2022-10-25 929-657 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN05 NY
2022-10-25 936-338 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 WILLIS TX
2022-10-25 941-310 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 PTCHARLOTT FL
2022-10-25 980-860 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E MOUNTHOLLY NC
2022-10-24 223-823 0XXX1XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E LITITZ PA
2022-10-24 249-899 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Collingwood —
2022-10-24 350-305 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - CA 649C YOSEMITE CA
2022-10-24 367-989 not yet reported which blocks → TELUS Mobility 8303 Alma —
2022-10-24 385-493 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - UT 117F KAYSVILLE UT
2022-10-24 419-804 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
2022-10-24 505-648 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 AZTEC NM
2022-10-24 562-605 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2022-10-24 567-390 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C FINDLAY OH
2022-10-24 650-674 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SNCRL-BLMT CA
2022-10-24 672-969 not yet reported which blocks → TELUS Mobility 8301 Kelowna —
2022-10-24 672-970 not yet reported which blocks → TELUS Mobility 8301 100 Mile House —
2022-10-24 719-620 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 PUEBLO CO
2022-10-24 747-317 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E PSDN LACN CA
2022-10-24 762-355 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 THOMASTON GA
2022-10-24 835-205 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2022-10-24 840-223 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CALIMESA CA
2022-10-24 901-770 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TN 525E COVINGTON TN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.