NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 210
NEW CINGULAR WIRELESS PCS, LLC - IL 1054
T-MOBILE USA, INC. 668
ONVOY, LLC - TX 395
BANDWIDTH.COM CLEC, LLC - TX 371
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 314
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
2013-12-31 210-404-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2013-12-31 210-462-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2013-12-31 210-463-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2013-12-31 210-465-6XXX 6000–6999Assigned METROPCS, INC. 5562 SANANTONIO TX
2013-12-31 210-518-6XXX 6000–6999Assigned METROPCS, INC. 5562 SANANTONIO TX
2013-12-27 210-263-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2013-12-27 210-537-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2013-12-27 210-762-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2013-12-27 210-762-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2013-12-27 210-762-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2013-12-02 210-762-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANANTONIO TX
2013-11-14 210-331-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-368-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-404-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-404-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-465-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-538-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-538-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-538-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-538-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-591-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-593-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-622-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-622-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-670-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-739-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-739-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-739-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-745-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-14 210-745-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2013-11-14 210-775-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2013-11-13 210-564-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-11-13 210-564-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-11-07 210-278-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2013-11-07 210-278-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2013-11-06 210-529-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-11-06 210-529-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-11-06 210-529-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-10-21 210-529-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2013-10-21 210-529-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2013-10-21 210-908-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2013-09-25 210-278-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-331-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-331-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-404-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-465-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-518-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-518-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2013-09-25 210-518-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX

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.