NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 916
T-MOBILE USA, INC. 446
ONVOY, LLC - CA 397
NEW CINGULAR WIRELESS PCS, LLC 374
METROPCS, INC. 362
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 331
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-05-22 916-916-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2023-05-22 916-916-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2023-05-22 916-916-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2023-05-09 916-569-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SCRM NORTH CA
2023-05-09 916-884-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN CA
2023-05-09 916-940-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SCRM NORTH CA
2023-05-05 916-938-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SO PLACER CA
2023-03-02 916-558-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2023-02-14 916-558-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SCRM MAIN CA
2023-02-02 916-326-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-02-02 916-440-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-02-02 916-440-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-02-02 916-449-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-02-02 916-497-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-02-02 916-553-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2023-01-04 916-980-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2022-10-18 916-551-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-10-18 916-551-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-10-18 916-551-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-10-18 916-551-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-10-18 916-739-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-10-11 916-537-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2022-10-05 916-992-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J RIO LINDA CA
2022-10-04 916-567-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J SCRM NORTH CA
2022-09-24 916-274-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SCRM NORTH CA
2022-09-22 916-497-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM MAIN CA
2022-09-22 916-497-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM MAIN CA
2022-09-22 916-553-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM MAIN CA
2022-09-22 916-553-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM MAIN CA
2022-09-20 916-537-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FAIR OAKS CA
2022-09-20 916-702-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PLEASATGRV CA
2022-08-11 916-839-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2022-07-05 916-938-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SO PLACER CA
2022-06-20 916-200-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2022-06-20 916-241-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2022-06-20 916-907-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2022-05-03 916-940-0XXX 0000–0999Assigned METROPCS, INC. 5562 SCRM NORTH CA
2022-05-03 916-940-1XXX 1000–1999Assigned METROPCS, INC. 5562 SCRM NORTH CA
2022-05-03 916-940-2XXX 2000–2999Assigned METROPCS, INC. 5562 SCRM NORTH CA
2022-05-03 916-940-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SCRM NORTH CA
2022-04-29 916-964-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2022-04-29 916-964-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.