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
2019-06-12 210-890-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-06-12 210-890-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-06-12 210-890-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-06-03 210-890-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANANTONIO TX
2019-06-03 210-905-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANANTONIO TX
2019-05-24 210-905-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-05-21 210-890-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-05-06 210-890-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-05-06 210-890-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-05-06 210-890-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-04-29 210-905-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-04-26 210-890-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-04-12 210-547-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-04-12 210-571-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-03-05 210-728-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-741-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-741-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-741-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-741-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-741-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-03-05 210-783-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2019-02-20 210-741-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-02-20 210-741-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-02-20 210-783-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-02-20 210-783-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-02-20 210-783-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-02-19 210-728-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2019-02-12 210-783-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANANTONIO TX
2019-01-18 210-783-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-01-18 210-783-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-01-18 210-783-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-01-18 210-783-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-01-18 210-783-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2019-01-16 210-667-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-01-16 210-674-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-01-16 210-682-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-01-16 210-946-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-01-16 210-967-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2019-01-02 210-728-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2018-12-20 210-761-8XXX 8000–8999Assigned TELNYX LLC 073H SANANTONIO TX
2018-11-27 210-761-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2018-11-27 210-761-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2018-11-14 210-750-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2018-11-14 210-806-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2018-11-14 210-806-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2018-11-14 210-806-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2018-10-31 210-750-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2018-10-22 210-936-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 SANANTONIO TX
2018-10-22 210-936-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 SANANTONIO TX
2018-10-22 210-936-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 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.