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
2022-04-18 916-596-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2022-03-11 916-940-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2022-03-11 916-940-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2022-03-11 916-940-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2022-03-11 916-940-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2022-03-11 916-940-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2022-03-04 916-977-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SCRM NORTH CA
2022-02-04 916-938-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SO PLACER CA
2022-02-04 916-938-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SO PLACER CA
2022-01-16 916-938-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SO PLACER CA
2022-01-14 916-938-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SO PLACER CA
2022-01-11 916-907-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2022-01-05 916-938-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SO PLACER CA
2022-01-05 916-938-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SO PLACER CA
2021-12-17 916-938-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SO PLACER CA
2021-12-09 916-980-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-09 916-980-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-09 916-980-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-11-29 916-982-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-11-29 916-982-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-11-29 916-982-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-11-29 916-982-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-11-29 916-994-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-29 916-994-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-19 916-665-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MEADOWVIEW CA
2021-11-19 916-665-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MEADOWVIEW CA
2021-11-17 916-809-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-11-17 916-982-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-11-17 916-982-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-11-12 916-994-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-12 916-994-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H RIO LINDA CA
2021-11-03 916-994-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
2021-10-27 916-907-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FAIR OAKS CA
2021-10-19 916-980-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-10-19 916-980-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-10-19 916-980-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-10-19 916-980-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-10-19 916-980-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SCRM MAIN CA
2021-10-12 916-610-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ISLETON CA
2021-10-12 916-900-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SCRM NORTH CA
2021-10-12 916-906-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FOLSOM CA
2021-10-12 916-906-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FOLSOM CA
2021-10-12 916-906-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FOLSOM CA
2021-10-12 916-954-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FOLSOM CA
2021-10-12 916-954-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FOLSOM 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.