NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 972
NEW CINGULAR WIRELESS PCS, LLC - IL 1
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
2010-07-29 972-591-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-591-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-616-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-628-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-630-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-630-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-29 972-630-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-07-28 972-652-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 IRVING TX
2010-07-27 972-318-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C LEWISVILLE TX
2010-07-26 972-803-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DALLAS TX
2010-07-16 972-302-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MCKINNEY TX
2010-07-16 972-325-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SEAGOVILLE TX
2010-07-16 972-439-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MCKINNEY TX
2010-06-29 972-854-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C GRANDPRARI TX
2010-06-16 972-884-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C DALLAS TX
2010-06-16 972-884-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C DALLAS TX
2010-06-11 972-750-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TERRELL TX
2010-06-11 972-750-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TERRELL TX
2010-05-28 972-318-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C LEWISVILLE TX
2010-05-28 972-325-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SEAGOVILLE TX
2010-05-28 972-627-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C AVALON TX
2010-05-28 972-752-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C BLUE RIDGE TX
2010-05-27 972-316-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LEWISVILLE TX
2010-05-27 972-316-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LEWISVILLE TX
2010-05-27 972-478-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CARROLLTON TX
2010-05-27 972-662-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CARROLLTON TX
2010-05-27 972-665-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PLANO TX
2010-05-27 972-665-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PLANO TX
2010-05-27 972-665-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PLANO TX
2010-05-24 972-584-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2010-05-21 972-581-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2010-05-19 972-803-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C DALLAS TX
2010-05-18 972-280-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-290-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-348-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-349-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-364-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-391-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-421-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-499-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-528-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-528-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-528-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-532-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-556-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-559-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-05-18 972-559-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2010-04-16 972-725-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C DALLAS TX
2010-04-07 972-584-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2010-04-07 972-584-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS 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.