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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-09-19 210-808-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2007-09-19 210-808-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2007-09-19 210-808-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2007-09-19 210-808-9XXX 9000–9999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2007-09-19 210-853-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2007-09-18 210-544-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-18 210-544-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-18 210-544-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-18 210-544-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-18 210-544-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-18 210-544-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2007-09-12 210-888-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2007-09-11 210-870-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2007-09-11 210-870-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2007-09-06 210-209-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-09-06 210-209-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2007-08-27 210-426-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2007-08-27 210-426-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2007-08-24 210-278-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-278-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-278-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-278-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-278-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-278-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-24 210-591-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2007-08-16 210-255-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-281-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-281-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-281-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-290-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-290-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-362-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-368-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-368-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-396-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-451-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-451-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-451-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-451-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-451-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-474-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-530-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-562-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2007-08-16 210-564-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K 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.