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
2005-08-17 760-331-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD CRLS CA
2005-08-16 760-475-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 VICTORVL CA
2005-08-15 760-560-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VISTA CA
2005-08-15 760-560-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VISTA CA
2005-08-15 760-777-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2005-08-15 760-777-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2005-08-15 760-989-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2005-08-05 760-254-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRSW YERM CA
2005-08-05 760-307-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LENWOOD CA
2005-08-05 760-718-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BARSTOW CA
2005-08-05 760-973-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORT IRWIN CA
2005-08-02 760-974-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 JOSHUATREE CA
2005-08-01 760-267-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BARSTOW CA
2005-07-25 760-479-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ENCINITAS CA
2005-07-25 760-690-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ESCONDIDO CA
2005-07-22 760-524-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VICTORVL CA
2005-07-22 760-969-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PALM SPG CA
2005-07-21 760-230-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ENCINITAS CA
2005-07-21 760-274-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ENCINITAS CA
2005-07-21 760-294-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2005-07-21 760-798-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2005-07-18 760-641-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PALM SPG CA
2005-07-12 760-601-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 PALMDESERT CA
2005-07-06 760-248-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LUCERNEVLY CA
2005-07-06 760-266-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SHOSHONE CA
2005-07-06 760-276-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PARKER DAM CA
2005-07-06 760-301-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RIDGECREST CA
2005-07-06 760-303-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RANDSBURG CA
2005-07-06 760-309-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWBERRY CA
2005-07-06 760-764-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OLANCHA CA
2005-07-06 760-854-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO VERDE CA
2005-07-06 760-856-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT PASS CA
2005-07-06 760-878-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INDEPNDNCE CA
2005-07-06 760-965-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MAMMOTHLKS CA
2005-07-05 760-206-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LEE VINING CA
2005-07-05 760-232-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PINE CREEK CA
2005-07-05 760-264-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LONE PINE CA
2005-07-05 760-273-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EARP CA
2005-07-05 760-302-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TRONA CA
2005-07-05 760-307-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LENWOOD CA
2005-07-05 760-316-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WRIGHTWOOD CA
2005-07-05 760-349-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PINYON CA
2005-07-05 760-350-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 KERNVILLE CA
2005-07-05 760-362-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TWNTYNPLMS CA
2005-07-05 760-363-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORONGOVLY CA
2005-07-05 760-388-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL MIRAGE CA
2005-07-05 760-392-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EAGLE MT CA
2005-07-05 760-437-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DESERT CTR CA
2005-07-05 760-469-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALMDESERT CA
2005-07-05 760-531-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WELDON 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.