NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2013-11-04 209-300-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MODESTO CA
2013-10-31 209-292-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C STOCKTON CA
2013-10-31 209-292-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C STOCKTON CA
2013-10-31 209-400-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LODI CA
2013-10-31 209-666-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TRACY CA
2013-10-15 209-435-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DOS PALOS CA
2013-10-11 209-300-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MODESTO CA
2013-10-11 209-887-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LINDEN CA
2013-10-04 209-292-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2013-10-04 209-813-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ANGELSCAMP CA
2013-10-01 209-226-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TURLOCK CA
2013-10-01 209-262-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TURLOCK CA
2013-10-01 209-553-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E THORNTON CA
2013-10-01 209-560-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SUTTER CRK CA
2013-09-23 209-276-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2013-09-11 209-666-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TRACY CA
2013-09-09 209-292-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L STOCKTON CA
2013-09-09 209-666-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L TRACY CA
2013-09-09 209-710-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LOS BANOS CA
2013-08-30 209-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TRACY CA
2013-08-28 209-418-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 JACKSON CA
2013-08-26 209-300-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MODESTO CA
2013-08-22 209-300-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MODESTO CA
2013-08-16 209-783-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C KNIGHTFRRY CA
2013-08-09 209-591-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNRA MAIN CA
2013-08-09 209-591-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNRA MAIN CA
2013-08-06 209-400-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LODI CA
2013-08-02 209-276-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2013-07-30 209-781-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E IONE CA
2013-07-22 209-894-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PATTERSON CA
2013-07-15 209-292-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2013-07-12 209-398-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LIVINGSTON CA
2013-07-10 209-242-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 STOCKTON CA
2013-07-08 209-841-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C OAKDALE CA
2013-06-27 209-248-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2013-06-27 209-272-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2013-06-27 209-272-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2013-06-27 209-276-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ATWATER CA
2013-06-27 209-600-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MERCED CA
2013-06-25 209-837-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 CROWS LDG CA
2013-06-21 209-400-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LODI CA
2013-06-20 209-248-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MODESTO CA
2013-06-17 209-337-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2013-06-17 209-337-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2013-06-17 209-645-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E STOCKTON CA
2013-06-14 209-266-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E COULTERVL CA
2013-06-14 209-787-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOCKEFORD CA
2013-06-07 209-269-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LODI CA
2013-05-29 209-647-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MANTECA CA
2013-05-28 209-225-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MODESTO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.