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
2012-02-15 760-678-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BARSTOW CA
2012-02-10 760-670-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ESCONDIDO CA
2012-02-03 760-405-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD OCSD CA
2012-02-03 760-405-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD OCSD CA
2012-02-01 760-517-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OCSD CRLS CA
2012-01-30 760-800-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 TWNTYNPLMS CA
2012-01-25 760-895-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PALMDESERT CA
2012-01-24 760-654-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RAMONA CA
2012-01-12 760-919-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J IMPERIAL CA
2012-01-05 760-450-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD OCSD CA
2012-01-04 760-377-2XXX 2000–2999Assigned MCC TELEPHONY OF THE WEST, LLC - CA 857F INYOKERN CA
2012-01-04 760-848-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2012-01-04 760-848-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2012-01-04 760-879-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2011-12-30 760-412-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRAWLEY CA
2011-12-29 760-496-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OCSD CRLS CA
2011-12-27 760-463-1XXX 1000–1999Assigned MCC TELEPHONY OF THE WEST, LLC - CA 857F RIDGECREST CA
2011-12-27 760-974-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 JOSHUATREE CA
2011-12-23 760-859-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OCSD OCSD CA
2011-12-23 760-983-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2011-12-13 760-848-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D INDIO CA
2011-12-07 760-894-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 DSERTHTSPG CA
2011-12-05 760-607-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 OCSD CRLS CA
2011-12-05 760-853-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 YUCCA VLY CA
2011-12-02 760-355-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K IMPERIAL CA
2011-12-02 760-623-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K BRAWLEY CA
2011-12-02 760-756-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K HOLTVILLE CA
2011-12-02 760-890-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K CALEXICO CA
2011-12-01 760-499-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIDGECREST CA
2011-11-29 760-623-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 BRAWLEY CA
2011-11-22 760-970-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K EL CENTRO CA
2011-11-21 760-237-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD PDTN CA
2011-11-21 760-995-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VTVL HSPR CA
2011-11-11 760-544-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BLYTHE CA
2011-11-09 760-848-1XXX 1000–1999Assigned FRONTIER CALIFORNIA INC. 2319 INDIO CA
2011-11-09 760-848-2XXX 2000–2999Assigned FRONTIER CALIFORNIA INC. 2319 INDIO CA
2011-11-02 760-993-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D DSERTHTSPG CA
2011-10-26 760-358-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OCOTILLO CA
2011-10-26 760-638-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEY CTR CA
2011-10-21 760-444-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2011-10-21 760-546-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ESCONDIDO CA
2011-10-13 760-846-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ENCINITAS CA
2011-10-04 760-487-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ENCINITAS CA
2011-09-30 760-623-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2011-09-28 760-879-9XXX 9000–9999Assigned METROPCS, INC. 5562 EL CENTRO CA
2011-09-22 760-363-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORONGOVLY CA
2011-09-22 760-545-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 IMPERIAL CA
2011-09-20 760-405-6XXX 6000–6999Assigned METROPCS, INC. 5562 OCSD OCSD CA
2011-09-20 760-991-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D VTVL ADLN CA
2011-09-19 760-827-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J OCSD CRLS 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.