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
2008-07-24 951-867-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MORENO CA
2008-07-18 951-797-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BANNING CA
2008-07-18 951-977-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ARLINGTON CA
2008-07-02 951-220-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D CORONA CA
2008-06-25 951-821-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SUN CITY CA
2008-06-18 951-220-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D CORONA CA
2008-06-13 951-215-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WOODCREST CA
2008-06-05 951-234-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TEMECULA CA
2008-06-05 951-234-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TEMECULA CA
2008-05-29 951-595-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TEMECULA CA
2008-05-20 951-977-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ARLINGTON CA
2008-05-16 951-588-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2008-05-14 951-732-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D RIVERSIDE CA
2008-05-14 951-732-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D RIVERSIDE CA
2008-05-14 951-732-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D RIVERSIDE CA
2008-05-14 951-732-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D RIVERSIDE CA
2008-05-09 951-208-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MORENO CA
2008-05-09 951-226-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ELSINORE CA
2008-05-09 951-473-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C MURRIETA CA
2008-05-09 951-570-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PERRIS CA
2008-05-07 951-208-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORENO CA
2008-05-07 951-639-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUN CITY CA
2008-05-07 951-878-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LAKEVIEWNU CA
2008-05-07 951-934-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MIRA LOMA CA
2008-05-07 951-934-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MIRA LOMA CA
2008-05-06 951-215-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C WOODCREST CA
2008-05-06 951-692-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HEMT HEMT CA
2008-05-05 951-208-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORENO CA
2008-05-05 951-208-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORENO CA
2008-05-05 951-223-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HEMT HMLD CA
2008-05-05 951-327-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C HEMT SNJC CA
2008-05-05 951-603-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TEMSCL CNY CA
2008-05-05 951-692-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HEMT HEMT CA
2008-05-05 951-848-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C RIVERSIDE CA
2008-05-02 951-220-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CORONA CA
2008-05-02 951-392-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2008-05-02 951-392-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2008-05-02 951-392-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2008-05-02 951-392-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2008-05-02 951-579-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ELSINORE CA
2008-05-02 951-797-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BANNING CA
2008-05-01 951-225-0XXX 0000–0999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TEMECULA CA
2008-05-01 951-225-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TEMECULA CA
2008-05-01 951-225-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TEMECULA CA
2008-04-28 951-224-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RIVERSIDE CA
2008-04-07 951-746-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SUN CITY CA
2008-03-27 951-332-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MIRA LOMA CA
2008-03-25 951-249-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MURRIETA CA
2008-03-12 951-220-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CORONA CA
2008-03-12 951-588-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ARLINGTON 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.