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
2014-09-26 210-973-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2014-09-26 210-973-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2014-09-26 210-973-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SANANTONIO TX
2014-09-24 210-914-0XXX 0000–0999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-2XXX 2000–2999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-4XXX 4000–4999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-5XXX 5000–5999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-6XXX 6000–6999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-24 210-914-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-23 210-765-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-23 210-765-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-15 210-721-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2014-09-12 210-318-0XXX 0000–0999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-5XXX 5000–5999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-6XXX 6000–6999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-318-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-721-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-721-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-12 210-721-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2014-09-10 210-801-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-970-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-970-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-970-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-980-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-980-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-980-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-09-10 210-980-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-26 210-801-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2014-08-26 210-801-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 8434 SANANTONIO TX
2014-08-22 210-721-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SANANTONIO TX
2014-08-15 210-758-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-15 210-758-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2014-08-12 210-907-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2014-08-12 210-907-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2014-08-12 210-907-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2014-08-12 210-907-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2014-08-12 210-907-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 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.