NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 209
ONVOY, 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
2007-05-25 209-323-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L STOCKTON CA
2007-05-25 209-323-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L STOCKTON CA
2007-05-25 209-846-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MODESTO CA
2007-05-24 209-839-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TRACY CA
2007-05-22 209-263-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LODI CA
2007-05-22 209-263-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LODI CA
2007-05-18 209-322-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OAKDALE CA
2007-04-17 209-627-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TRACY CA
2007-04-17 209-896-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 RIVERBANK CA
2007-04-06 209-751-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2007-04-06 209-751-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2007-04-06 209-751-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2007-04-06 209-762-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2007-04-06 209-762-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2007-04-02 209-829-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOS BANOS CA
2007-03-30 209-390-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 STOCKTON CA
2007-03-23 209-829-8XXX 8000–8999Assigned METROPCS, INC. 5562 LOS BANOS CA
2007-03-13 209-846-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MODESTO CA
2007-03-12 209-594-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2007-03-12 209-733-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GUSTINE CA
2007-02-21 209-323-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 STOCKTON CA
2007-02-14 209-676-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7128 ATWATER CA
2007-02-14 209-752-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7128 LOS BANOS CA
2007-02-13 209-202-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2007-02-13 209-202-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2007-02-13 209-846-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MODESTO CA
2007-02-13 209-846-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MODESTO CA
2007-02-13 209-846-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MODESTO CA
2007-02-09 209-923-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7128 MANTECA CA
2007-02-08 209-206-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TUOLUMNE CA
2007-02-07 209-683-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2007-01-29 209-450-7XXX 7000–7999Assigned METROPCS, INC. 5562 MODESTO CA
2007-01-29 209-596-7XXX 7000–7999Assigned METROPCS, INC. 5562 MODESTO CA
2007-01-29 209-735-8XXX 8000–8999Assigned METROPCS, INC. 5562 MODESTO CA
2007-01-29 209-735-9XXX 9000–9999Assigned METROPCS, INC. 5562 MODESTO CA
2007-01-22 209-627-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TRACY CA
2007-01-22 209-627-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TRACY CA
2007-01-12 209-275-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MANTECA CA
2007-01-12 209-275-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MANTECA CA
2007-01-12 209-450-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2007-01-12 209-450-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2007-01-12 209-626-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MERCED CA
2006-12-20 209-202-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TURLOCK CA
2006-12-15 209-405-4XXX 4000–4999Assigned METROPCS, INC. 5562 STOCKTON CA
2006-12-15 209-405-5XXX 5000–5999Assigned METROPCS, INC. 5562 STOCKTON CA
2006-12-15 209-405-6XXX 6000–6999Assigned METROPCS, INC. 5562 STOCKTON CA
2006-12-15 209-684-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2006-12-15 209-684-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2006-12-14 209-348-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLEMENTS CA
2006-12-13 209-640-3XXX 3000–3999Assigned METROPCS, INC. 5562 TRACY 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.