NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-07-09 916-909-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-07-09 916-909-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-07-09 916-957-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-06-26 916-818-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ELK GROVE CA
2021-06-26 916-908-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FAIR OAKS CA
2021-06-26 916-909-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN CA
2021-06-18 916-818-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-06-18 916-818-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-06-16 916-818-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2021-06-16 916-818-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2021-06-16 916-818-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2021-06-16 916-818-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2021-06-16 916-908-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C FAIR OAKS CA
2021-06-16 916-908-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C FAIR OAKS CA
2021-06-16 916-908-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C FAIR OAKS CA
2021-06-16 916-908-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C FAIR OAKS CA
2021-06-16 916-909-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-06-16 916-909-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-06-16 916-909-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-06-16 916-909-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LINCOLN CA
2021-06-04 916-957-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-06-04 916-957-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-06-04 916-957-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-06-04 916-957-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2021-05-17 916-908-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FAIR OAKS CA
2021-05-17 916-908-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FAIR OAKS CA
2021-05-17 916-908-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FAIR OAKS CA
2021-05-17 916-957-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-17 916-957-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-17 916-957-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-17 916-957-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-14 916-490-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-14 916-530-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-14 916-530-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-05-10 916-775-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C COURTLAND CA
2021-05-10 916-775-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C COURTLAND CA
2021-05-10 916-909-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LINCOLN CA
2021-05-04 916-818-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-05-04 916-818-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-05-04 916-866-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FAIR OAKS CA
2021-05-04 916-937-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-05-04 916-937-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2021-04-22 916-610-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ISLETON CA
2021-04-22 916-610-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ISLETON CA
2021-04-12 916-610-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ISLETON CA
2021-04-07 916-796-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J RIO LINDA CA
2021-04-06 916-839-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RSVL MAIN CA
2021-04-02 916-699-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2021-04-02 916-699-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2021-04-02 916-699-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.