NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2016-12-22 210-676-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2016-12-22 210-676-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2016-12-22 210-676-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2016-12-22 210-676-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2016-12-12 210-432-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-438-4XXX 4000–4999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-438-5XXX 5000–5999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-737-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-874-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-926-2XXX 2000–2999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-926-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-926-4XXX 4000–4999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-946-4XXX 4000–4999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-12-12 210-967-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-11-29 210-642-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-29 210-926-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-29 210-926-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-29 210-961-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-29 210-961-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-29 210-961-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-11-08 210-961-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2016-11-02 210-955-2XXX 2000–2999Assigned COMMIO, LLC 939H SANANTONIO TX
2016-10-28 210-961-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANANTONIO TX
2016-10-28 210-961-8XXX 8000–8999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANANTONIO TX
2016-10-28 210-961-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANANTONIO TX
2016-10-12 210-642-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2016-10-12 210-642-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2016-10-12 210-642-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2016-10-05 210-350-4XXX 4000–4999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-642-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-961-0XXX 0000–0999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-961-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-963-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-10-05 210-963-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-10-05 210-963-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-10-05 210-963-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-10-05 210-969-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2016-10-05 210-974-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-974-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-981-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-982-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-982-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-10-05 210-994-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANANTONIO TX
2016-09-23 210-969-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2016-09-23 210-969-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2016-09-19 210-961-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANANTONIO TX
2016-08-25 210-969-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2016-08-25 210-969-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2016-07-28 210-642-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2016-07-28 210-642-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.