NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

27 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 25
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
2005-10-12 951-796-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2005-10-12 951-796-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2005-10-12 951-796-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2005-10-07 951-527-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 IDYLLWILD CA
2005-10-07 951-579-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ELSINORE CA
2005-10-07 951-992-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORENO CA
2005-10-05 951-867-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MORENO CA
2005-10-05 951-992-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D MORENO CA
2005-09-23 951-345-1XXX 1000–1999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PERRIS CA
2005-09-23 951-514-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TEMECULA CA
2005-09-23 951-514-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TEMECULA CA
2005-09-23 951-663-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-09-23 951-663-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-09-22 951-345-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2005-09-22 951-801-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 RIVERSIDE CA
2005-09-22 951-801-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 RIVERSIDE CA
2005-09-20 951-514-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TEMECULA CA
2005-09-16 951-750-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIVERSIDE CA
2005-09-16 951-808-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CORONA CA
2005-09-15 951-514-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TEMECULA CA
2005-09-15 951-582-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CORONA CA
2005-09-15 951-582-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CORONA CA
2005-09-14 951-801-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RIVERSIDE CA
2005-09-12 951-723-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SUN CITY CA
2005-09-12 951-893-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 CORONA CA
2005-09-08 951-345-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2005-09-08 951-345-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2005-09-07 951-867-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORENO CA
2005-09-02 951-332-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MIRA LOMA CA
2005-09-02 951-332-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MIRA LOMA CA
2005-08-31 951-345-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PERRIS CA
2005-08-31 951-345-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PERRIS CA
2005-08-30 951-332-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MIRA LOMA CA
2005-08-30 951-346-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C RIVERSIDE CA
2005-08-30 951-368-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C RIVERSIDE CA
2005-08-30 951-582-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CORONA CA
2005-08-30 951-582-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CORONA CA
2005-08-30 951-729-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ARLINGTON CA
2005-08-29 951-514-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TEMECULA CA
2005-08-25 951-893-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORONA CA
2005-08-25 951-893-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORONA CA
2005-08-18 951-816-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D MURRIETA CA
2005-08-18 951-992-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORENO CA
2005-08-18 951-992-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORENO CA
2005-08-11 951-514-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 TEMECULA CA
2005-08-05 951-663-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-08-05 951-663-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-08-05 951-663-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-08-05 951-905-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 RIVERSIDE CA
2005-08-04 951-816-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MURRIETA 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.