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
2020-06-09 916-237-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C RIO LINDA CA
2020-06-09 916-252-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PLEASATGRV CA
2020-06-09 916-252-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PLEASATGRV CA
2020-06-09 916-378-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C MEADOWVIEW CA
2020-06-09 916-378-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MEADOWVIEW CA
2020-06-09 916-602-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2020-06-09 916-602-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ELK GROVE CA
2020-06-09 916-659-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SO PLACER CA
2020-06-09 916-659-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SO PLACER CA
2020-05-12 916-477-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C WALNUT GRV CA
2020-05-12 916-527-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C WALNUT GRV CA
2020-05-12 916-756-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C COURTLAND CA
2020-05-12 916-775-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C COURTLAND CA
2020-05-04 916-602-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D ELK GROVE CA
2020-05-04 916-602-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D ELK GROVE CA
2020-04-27 916-659-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SO PLACER CA
2020-04-16 916-270-0XXX 0000–0999Assigned TELNYX LLC 073H WALNUT GRV CA
2020-04-16 916-602-0XXX 0000–0999Assigned TELNYX LLC 073H ELK GROVE CA
2020-04-15 916-776-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F WALNUT GRV CA
2020-04-14 916-699-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RSVL MAIN CA
2020-04-14 916-699-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RSVL MAIN CA
2020-04-14 916-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RSVL MAIN CA
2020-04-14 916-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RSVL MAIN CA
2020-04-07 916-299-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PLEASATGRV CA
2020-04-07 916-655-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PLEASATGRV CA
2020-04-07 916-665-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C MEADOWVIEW CA
2020-04-07 916-665-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MEADOWVIEW CA
2020-04-07 916-931-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C RIO LINDA CA
2020-04-07 916-931-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C RIO LINDA CA
2020-04-02 916-720-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-04-02 916-840-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-04-02 916-848-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-04-02 916-848-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-04-02 916-914-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-03-25 916-282-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-594-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-720-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-25 916-720-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-03-25 916-720-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-03-25 916-720-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCRM MAIN CA
2020-03-25 916-809-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2020-03-24 916-618-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FOLSOM CA
2020-03-24 916-618-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FOLSOM CA
2020-03-17 916-471-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SCRM MAIN CA
2020-03-17 916-848-4XXX 4000–4999Assigned 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.