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
2004-11-02 209-744-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 GALT CA
2004-11-02 209-754-7XXX 7000–7999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANANDREAS CA
2004-10-22 209-740-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TRACY CA
2004-10-18 209-242-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2004-10-18 209-640-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TRACY CA
2004-10-13 209-351-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LINDEN CA
2004-10-12 209-534-2XXX 2000–2999Assigned METROPCS, INC. 5562 MODESTO CA
2004-10-04 209-818-2XXX 2000–2999Assigned METROPCS, INC. 5562 MODESTO CA
2004-10-04 209-818-3XXX 3000–3999Assigned METROPCS, INC. 5562 MODESTO CA
2004-10-04 209-818-4XXX 4000–4999Assigned METROPCS, INC. 5562 MODESTO CA
2004-10-04 209-818-5XXX 5000–5999Assigned METROPCS, INC. 5562 MODESTO CA
2004-10-04 209-818-6XXX 6000–6999Assigned METROPCS, INC. 5562 MODESTO CA
2004-09-23 209-485-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2004-09-08 209-352-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TUOLUMNE CA
2004-09-08 209-352-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TUOLUMNE CA
2004-09-07 209-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 JACKSON CA
2004-09-07 209-559-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANGELSCAMP CA
2004-09-01 209-710-6XXX 6000–6999Assigned PACIFIC BELL 9740 LOS BANOS CA
2004-09-01 209-888-8XXX 8000–8999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 STOCKTON CA
2004-08-23 209-351-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LINDEN CA
2004-08-20 209-221-6XXX 6000–6999Assigned PACIFIC BELL 9740 TRACY CA
2004-08-20 209-221-7XXX 7000–7999Assigned PACIFIC BELL 9740 TRACY CA
2004-08-20 209-221-8XXX 8000–8999Assigned PACIFIC BELL 9740 TRACY CA
2004-07-26 209-277-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TURLOCK CA
2004-07-22 209-509-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOS BANOS CA
2004-07-22 209-509-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOS BANOS CA
2004-07-20 209-216-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2004-07-16 209-204-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MODESTO CA
2004-07-16 209-370-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LODI CA
2004-07-07 209-923-9XXX 9000–9999Assigned AT&T - LOCAL 7421 MANTECA CA
2004-07-06 209-256-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 JACKSON CA
2004-07-06 209-485-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2004-06-23 209-242-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2004-05-25 209-808-1XXX 1000–1999Assigned METROPCS, INC. 5562 STOCKTON CA
2004-05-25 209-808-2XXX 2000–2999Assigned METROPCS, INC. 5562 STOCKTON CA
2004-05-25 209-808-3XXX 3000–3999Assigned METROPCS, INC. 5562 STOCKTON CA
2004-05-25 209-808-4XXX 4000–4999Assigned METROPCS, INC. 5562 STOCKTON CA
2004-05-25 209-808-6XXX 6000–6999Assigned METROPCS, INC. 5562 STOCKTON CA
2004-05-21 209-534-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MODESTO CA
2004-05-19 209-352-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TUOLUMNE CA
2004-05-17 209-509-2XXX 2000–2999Assigned METROPCS, INC. 5562 LOS BANOS CA
2004-05-12 209-216-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TURLOCK CA
2004-05-12 209-489-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MERCED CA
2004-05-11 209-338-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2004-05-11 209-338-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MODESTO CA
2004-04-15 209-559-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANGELSCAMP CA
2004-04-09 209-923-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MANTECA CA
2004-03-25 209-752-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LOS BANOS CA
2004-03-15 209-346-3XXX 3000–3999Assigned METROPCS, INC. 5562 TRACY CA
2004-03-15 209-346-4XXX 4000–4999Assigned 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.