NumberResearch Membership · Data 10/01/2026

Recent prefix assignments

374 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 10/01/2026

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-09-13 469-550 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WAXAHACHIE TX
2018-09-13 469-638 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C DALLAS TX
2018-09-13 469-639 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C IRVING TX
2018-09-13 551-287 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-09-13 616-410 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J GRAND RPDS MI
2018-09-13 616-535 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 SPARTA MI
2018-09-13 682-610 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C FORT WORTH TX
2018-09-13 901-441 0–9 XXXall 10 · 2 holders which blocks → TWIN LAKES COMMUNICATIONS, INC. - TN 204G MEMPHIS TN
2018-09-13 918-727 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OK 409F TULSA OK
2018-09-13 941-259 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 SARASOTA FL
2018-09-13 971-341 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-09-12 236-843 not yet reported which blocks → Videotron Ltd. 383F Summerland —
2018-09-12 236-873 not yet reported which blocks → Videotron Ltd. 383F Vernon —
2018-09-12 236-903 not yet reported which blocks → Videotron Ltd. 383F Qualicum —
2018-09-12 332-225 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2018-09-12 438-359 not yet reported which blocks → Bell Mobility 6574 Montreal —
2018-09-12 480-877 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2018-09-12 540-918 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F SHENANDOAH VA
2018-09-12 548-881 not yet reported which blocks → Fido Solutions Inc. 5643 London —
2018-09-12 581-889 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2018-09-12 581-899 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2018-09-12 680-201 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E LAFAYETTE NY
2018-09-12 719-642 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CO 078F CRIPPLECRK CO
2018-09-12 825-405 not yet reported which blocks → TELUS 8084 Vauxhall —
2018-09-12 825-513 not yet reported which blocks → TELUS 8084 Calgary —
2018-09-12 929-488 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
2018-09-12 929-501 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN13 NY
2018-09-11 236-457 not yet reported which blocks → Videotron Ltd. 383F Kelowna —
2018-09-11 236-467 not yet reported which blocks → Videotron Ltd. 383F Lakeview Heights —
2018-09-11 236-487 not yet reported which blocks → Videotron Ltd. 383F Peachland —
2018-09-11 236-489 not yet reported which blocks → Videotron Ltd. 383F Courtenay —
2018-09-11 236-507 not yet reported which blocks → Videotron Ltd. 383F Campbell River —
2018-09-11 236-517 not yet reported which blocks → Videotron Ltd. 383F Comox —
2018-09-11 236-557 not yet reported which blocks → Videotron Ltd. 383F Cumberland —
2018-09-11 236-567 not yet reported which blocks → Videotron Ltd. 383F Oyster Bay —
2018-09-11 334-789 0XXX1XXX2XXX3XXX5XXX · 5 holders which blocks → TROY CABLEVISION, INC. - AL 208D ASHFORD AL
2018-09-11 339-213 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DEDHAM MA
2018-09-11 458-854 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OR 750E THE DALLES OR
2018-09-11 551-557 0–9 XXXall 10 · 8 holders which blocks → BLUEBIRD COMMUNICATIONS, LLC - NJ 999H PARK RIDGE NJ
2018-09-11 603-450 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2018-09-11 657-360 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2018-09-11 719-789 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CO 078F CALHAN CO
2018-09-10 217-699 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC 224C BEMENT IL
2018-09-10 470-451 0–9 XXXall 10 · 2 holders which blocks → VOIP INNOVATIONS, LLC 597F ATLANTA GA
2018-09-10 507-620 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TEKSTAR COMMUNICATIONS, INC. 4156 WESTBROOK MN
2018-09-10 513-799 0–9 XXXall 10 · 2 holders which blocks → INVOXIO INCORPORATED 158H CINCINNATI OH
2018-09-10 520-759 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 CASAGRANDE AZ
2018-09-10 520-779 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AZ 587F WILLCOX AZ
2018-09-10 581-855 not yet reported which blocks → Videotron Ltd. 8306 Montmagny —
2018-09-10 725-207 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F LAS VEGAS NV

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.