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
2012-04-30 209-910-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C STOCKTON CA
2012-04-17 209-227-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2012-04-17 209-910-8XXX 8000–8999Assigned METROPCS, INC. 5562 STOCKTON CA
2012-04-11 209-269-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LODI CA
2012-04-06 209-407-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TRACY CA
2012-04-05 209-200-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LODI CA
2012-04-05 209-210-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LODI CA
2012-04-03 209-410-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TURLOCK CA
2012-04-02 209-269-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LODI CA
2012-03-21 209-587-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOS BANOS CA
2012-03-21 209-642-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LODI CA
2012-03-21 209-683-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATWATER CA
2012-03-19 209-288-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNRA MAIN CA
2012-03-13 209-250-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TURLOCK CA
2012-02-29 209-898-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 STOCKTON CA
2012-02-17 209-730-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GALT CA
2012-02-10 209-900-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 MODESTO CA
2012-02-08 209-288-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNRA MAIN CA
2012-02-08 209-407-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRACY CA
2012-02-08 209-662-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2012-02-08 209-662-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2012-02-08 209-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2012-02-08 209-888-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2012-02-08 209-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2012-02-07 209-410-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TURLOCK CA
2012-02-06 209-338-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MODESTO CA
2012-02-03 209-364-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DOS PALOS CA
2012-02-01 209-732-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GROVELAND CA
2012-02-01 209-989-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MOCCASIN CA
2012-01-26 209-809-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2012-01-26 209-809-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2012-01-26 209-900-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2012-01-25 209-900-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MODESTO CA
2012-01-24 209-259-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MERCED CA
2012-01-24 209-259-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MERCED CA
2012-01-20 209-643-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATWATER CA
2012-01-18 209-588-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNRA MAIN CA
2012-01-18 209-813-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANGELSCAMP CA
2012-01-11 209-205-5XXX 5000–5999Assigned METROPCS, INC. 5562 MERCED CA
2012-01-11 209-261-1XXX 1000–1999Assigned METROPCS, INC. 5562 MERCED CA
2012-01-04 209-916-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 JAMESTOWN CA
2011-12-23 209-317-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C COULTERVL CA
2011-12-16 209-940-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J STOCKTON CA
2011-12-14 209-288-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNRA MAIN CA
2011-12-14 209-647-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MANTECA CA
2011-12-14 209-677-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNRA JUNO CA
2011-12-13 209-259-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MERCED CA
2011-12-08 209-410-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TURLOCK CA
2011-11-21 209-259-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MERCED CA
2011-11-21 209-259-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MERCED 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.