NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 2
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
2006-04-03 760-863-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2006-04-03 760-863-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2006-03-31 760-615-1XXX 1000–1999Assigned XO CALIFORNIA, INC. 7262 PAUMA VLY CA
2006-03-30 760-534-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PALM SPG CA
2006-03-28 760-730-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2006-03-28 760-755-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2006-03-28 760-892-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WARNER SPG CA
2006-03-13 760-297-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VALLEY CTR CA
2006-03-13 760-751-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VALLEY CTR CA
2006-03-13 760-777-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2006-03-13 760-981-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VTVL HSPR CA
2006-03-10 760-452-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C ENCINITAS CA
2006-03-10 760-512-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C OCSD PDTN CA
2006-03-10 760-696-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C OCSD OCSD CA
2006-03-10 760-814-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C OCSD CRLS CA
2006-03-10 760-975-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ESCONDIDO CA
2006-03-09 760-393-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 INDIO CA
2006-03-09 760-393-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 INDIO CA
2006-03-09 760-482-6XXX 6000–6999Assigned METROPCS, INC. 5562 EL CENTRO CA
2006-03-08 760-300-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ESCONDIDO CA
2006-03-08 760-596-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D VICTORVL CA
2006-03-07 760-695-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FALLBROOK CA
2006-03-06 760-260-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C JULIAN CA
2006-03-06 760-482-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 EL CENTRO CA
2006-02-22 760-689-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 FALLBROOK CA
2006-02-20 760-596-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VICTORVL CA
2006-02-17 760-673-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PALM SPG CA
2006-02-14 760-354-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CALIPATRIA CA
2006-02-10 760-386-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C FORT IRWIN CA
2006-02-10 760-638-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEY CTR CA
2006-02-10 760-888-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ESCONDIDO CA
2006-02-09 760-267-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BARSTOW CA
2006-02-09 760-529-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OCSD OCSD CA
2006-02-09 760-927-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2006-02-09 760-927-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2006-02-09 760-927-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2006-02-09 760-927-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2006-02-07 760-579-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J OCSD CRLS CA
2006-02-07 760-604-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL CENTRO CA
2006-02-07 760-638-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 VALLEY CTR CA
2006-02-07 760-679-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 EL CENTRO CA
2006-02-07 760-834-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PALMDESERT CA
2006-02-07 760-834-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PALMDESERT CA
2006-02-03 760-709-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MAMMOTHLKS CA
2006-01-31 760-274-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ENCINITAS CA
2006-01-27 760-927-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VICTORVL CA
2006-01-27 760-927-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D VICTORVL CA
2006-01-26 760-596-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VICTORVL CA
2006-01-26 760-694-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VICTORVL CA
2006-01-26 760-694-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VICTORVL 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.