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
2018-05-09 210-741-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2018-05-09 210-741-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2018-05-09 210-741-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2018-05-03 210-729-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-05-03 210-729-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-04-30 210-580-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-04-30 210-580-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-04-30 210-728-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-04-02 210-728-0XXX 0000–0999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-04-02 210-728-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-04-02 210-728-2XXX 2000–2999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-04-02 210-728-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-04-02 210-728-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-04-02 210-728-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-02-20 210-640-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-02-20 210-944-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-02-20 210-962-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2018-02-16 210-640-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-02-16 210-944-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-02-08 210-894-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-02-08 210-944-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-02-08 210-944-5XXX 5000–5999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-02-08 210-944-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-02-08 210-962-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2018-01-25 210-894-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2018-01-25 210-894-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2017-12-12 210-962-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2017-12-12 210-962-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2017-11-27 210-955-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2017-10-18 210-874-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2017-09-29 210-580-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2017-09-29 210-874-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2017-09-15 210-874-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2017-09-13 210-686-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 SANANTONIO TX
2017-08-21 210-580-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2017-08-21 210-580-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2017-08-18 210-817-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2017-08-18 210-817-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2017-08-18 210-817-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C 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.