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
2022-09-14 835-201 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F BETHLEHEM PA
2022-09-14 878-867 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H NEWKNSNGTN PA
2022-09-14 904-689 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOHNS FL
2022-09-14 929-640 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2022-09-14 929-641 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2022-09-14 929-642 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
2022-09-14 929-643 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN14 NY
2022-09-14 929-645 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2022-09-14 929-647 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2022-09-14 929-648 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
2022-09-14 929-649 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN11 NY
2022-09-14 929-650 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN13 NY
2022-09-14 947-254 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2022-09-14 980-392 0–9 XXXall 10 · 4 holders which blocks → LEAP TELECOM, LLC 616J CHARLOTTE NC
2022-09-14 986-231 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 IDAHOFALLS ID
2022-09-14 986-232 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 MT HOME ID
2022-09-13 256-981 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 732J CULLMAN AL
2022-09-13 256-982 0–9 XXXall 10 · 2 holders which blocks → NUSO, LLC 732J ANNISTON AL
2022-09-13 262-867 0–9 XXXall 10 · 6 holders which blocks → COMMIO, LLC 939H KENOSHA WI
2022-09-13 321-448 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2022-09-13 332-269 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2022-09-13 367-701 not yet reported which blocks → Bell Mobility 6574 Chicoutimi —
2022-09-13 425-464 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - WA 483E FALL CITY WA
2022-09-13 437-435 not yet reported which blocks → Videotron Ltd. 328F Toronto —
2022-09-13 475-321 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW HAVEN CT
2022-09-13 475-867 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H DANBURY CT
2022-09-13 506-482 not yet reported which blocks → Bell Mobility Aliant 329A Moncton —
2022-09-13 571-586 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VA 138E HERNDON VA
2022-09-13 603-207 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NH 637E DERRY NH
2022-09-13 603-713 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NH 637E NASHUA NH
2022-09-13 603-802 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NH 637E CONCORD NH
2022-09-13 743-262 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2022-09-13 769-286 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 BROOKHAVEN MS
2022-09-13 770-589 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA NE GA
2022-09-13 782-413 not yet reported which blocks → Bell Mobility Aliant 329A Halifax —
2022-09-13 782-543 not yet reported which blocks → Bell Mobility Aliant 329A Summerside —
2022-09-13 807-395 not yet reported which blocks → Bell Mobility 6574 Kenora —
2022-09-13 825-956 not yet reported which blocks → Iristel Inc. 154E Vauxhall —
2022-09-13 840-220 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2022-09-13 862-407 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PATERSON NJ
2022-09-13 930-263 0XXX1XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J EVANSVILLE IN
2022-09-13 930-264 1XXX which blocks → PAETEC ITEL, LLC 829J BLOOMINGTN IN
2022-09-13 939-367 0XXX1XXX2XXX3XXX8XXX9XXX · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 FAJARDO PR
2022-09-12 448-208 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J PERRY FL
2022-09-12 448-413 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C MUNSON FL
2022-09-12 689-680 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C KISSIMMEE FL
2022-09-12 725-285 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 LAS VEGAS NV
2022-09-12 782-638 not yet reported which blocks → Bell Mobility Aliant 329A Halifax —
2022-09-12 825-548 not yet reported which blocks → Iristel Inc. 154E Strathmore —
2022-09-12 825-947 not yet reported which blocks → Iristel Inc. 154E Valleyview —

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.