NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

16 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, last 30 days — NPA 951
ONVOY, LLC - CA 14
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
BANDWIDTH.COM CLEC, LLC - CA 1
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
2007-10-02 951-226-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K ELSINORE CA
2007-09-27 951-239-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D MURRIETA CA
2007-09-27 951-239-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D MURRIETA CA
2007-09-27 951-239-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D MURRIETA CA
2007-09-27 951-239-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MURRIETA CA
2007-09-27 951-249-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MURRIETA CA
2007-09-27 951-249-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MURRIETA CA
2007-09-18 951-215-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WOODCREST CA
2007-09-18 951-238-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-17 951-238-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PERRIS CA
2007-09-17 951-238-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PERRIS CA
2007-09-11 951-208-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MORENO CA
2007-09-11 951-208-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MORENO CA
2007-09-11 951-208-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MORENO CA
2007-09-11 951-229-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-229-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2007-09-11 951-230-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-09-11 951-230-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2007-09-11 951-234-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TEMECULA CA
2007-09-11 951-234-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TEMECULA CA
2007-09-11 951-234-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D TEMECULA CA
2007-09-11 951-496-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CORONA CA
2007-09-11 951-588-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2007-09-07 951-692-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-31 951-225-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K TEMECULA CA
2007-08-29 951-972-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K TEMECULA CA
2007-08-22 951-219-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MURRIETA CA
2007-08-22 951-691-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MURRIETA CA
2007-08-20 951-282-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-20 951-282-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-20 951-282-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-20 951-282-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-20 951-282-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2007-08-20 951-496-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CORONA CA
2007-08-20 951-496-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CORONA CA
2007-08-20 951-496-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CORONA CA
2007-08-20 951-496-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CORONA 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.