NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 760
ONVOY, LLC - CA 3
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 1
NEW CINGULAR WIRELESS PCS, LLC 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
2011-01-12 760-974-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 JOSHUATREE CA
2011-01-10 760-879-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2011-01-05 760-234-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL CENTRO CA
2011-01-04 760-609-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2011-01-04 760-609-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2010-12-29 760-709-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MAMMOTHLKS CA
2010-12-23 760-335-8XXX 8000–8999Assigned METROPCS, INC. 5562 EL CENTRO CA
2010-12-23 760-893-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OCSD CRLS CA
2010-12-21 760-540-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL CENTRO CA
2010-12-21 760-565-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K PALMDESERT CA
2010-12-21 760-565-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K PALMDESERT CA
2010-12-21 760-679-2XXX 2000–2999Assigned METROPCS, INC. 5562 EL CENTRO CA
2010-12-17 760-282-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D BARSTOW CA
2010-12-13 760-676-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D DSERTHTSPG CA
2010-12-13 760-933-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BENTON CA
2010-12-08 760-890-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 CALEXICO CA
2010-11-30 760-513-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VICTORVL CA
2010-11-29 760-609-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2010-11-29 760-609-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D INDIO CA
2010-11-24 760-606-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-24 760-606-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2010-11-22 760-565-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALMDESERT CA
2010-11-22 760-571-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MARCOS CA
2010-11-22 760-609-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INDIO CA
2010-11-11 760-537-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K PALM SPG CA
2010-11-08 760-623-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2010-10-29 760-565-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALMDESERT CA
2010-10-27 760-671-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DSERTHTSPG CA
2010-10-26 760-514-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIFORNCY CA
2010-10-15 760-261-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D VICTORVL CA
2010-10-15 760-261-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D VICTORVL CA
2010-10-07 760-623-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRAWLEY CA
2010-10-07 760-995-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2010-09-29 760-659-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 VISTA CA
2010-09-23 760-317-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2010-09-23 760-795-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 OCSD CRLS CA
2010-09-08 760-893-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2010-09-03 760-563-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WRWD PHLN CA
2010-09-02 760-239-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RAMONA CA
2010-09-02 760-385-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OCSD PDTN CA
2010-09-02 760-459-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALM SPG CA
2010-09-02 760-609-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INDIO 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.