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
2014-12-11 209-284-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MODESTO CA
2014-12-09 209-426-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LODI CA
2014-12-09 209-587-7XXX 7000–7999Assigned METROPCS, INC. 5562 LOS BANOS CA
2014-12-05 209-395-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-12-05 209-395-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-12-05 209-395-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-12-03 209-284-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2014-12-03 209-284-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2014-12-03 209-284-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2014-12-03 209-284-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2014-12-03 209-284-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MODESTO CA
2014-12-03 209-442-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WTFR MAIN CA
2014-12-03 209-500-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MERCED CA
2014-12-03 209-502-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIVERBANK CA
2014-12-02 209-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TRACY CA
2014-12-02 209-542-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HUGHSON CA
2014-12-02 209-882-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HUGHSON CA
2014-12-01 209-362-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C TRACY CA
2014-12-01 209-362-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C TRACY CA
2014-12-01 209-395-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C STOCKTON CA
2014-12-01 209-395-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C STOCKTON CA
2014-12-01 209-850-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C TURLOCK CA
2014-12-01 209-850-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TURLOCK CA
2014-11-21 209-361-0XXX 0000–0999Assigned METROPCS, INC. 5562 STOCKTON CA
2014-11-21 209-361-1XXX 1000–1999Assigned METROPCS, INC. 5562 STOCKTON CA
2014-11-21 209-361-2XXX 2000–2999Assigned METROPCS, INC. 5562 STOCKTON CA
2014-11-20 209-387-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 DOS PALOS CA
2014-11-19 209-361-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2014-11-19 209-361-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2014-11-19 209-361-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2014-11-19 209-361-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2014-11-18 209-426-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LODI CA
2014-11-10 209-328-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MANTECA CA
2014-11-07 209-326-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2014-11-07 209-326-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2014-11-05 209-362-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TRACY CA
2014-11-03 209-361-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-11-03 209-361-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-11-03 209-361-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STOCKTON CA
2014-10-31 209-283-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 JACKSON CA
2014-10-31 209-283-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JACKSON CA
2014-10-31 209-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MERCED CA
2014-10-31 209-355-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MERCED CA
2014-10-24 209-326-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ATWATER CA
2014-10-21 209-284-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MODESTO CA
2014-10-21 209-326-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATWATER CA
2014-10-21 209-326-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATWATER CA
2014-10-21 209-347-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARIPOSA CA
2014-10-20 209-289-2XXX 2000–2999Assigned XO CALIFORNIA, INC. 7262 MODESTO CA
2014-10-20 209-689-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 STOCKTON 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.