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
2005-10-19 972-689-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-19 972-689-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-10 972-318-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LEWISVILLE TX
2005-10-10 972-559-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2005-10-10 972-559-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2005-10-10 972-559-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2005-10-04 972-795-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-04 972-795-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-04 972-795-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-04 972-795-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-10-04 972-795-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-09-23 972-325-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SEAGOVILLE TX
2005-09-23 972-347-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PROSPER TX
2005-09-22 972-795-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-09-22 972-795-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-09-21 972-302-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2005-09-20 972-623-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-09-19 972-837-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MCKINNEY TX
2005-09-19 972-999-5XXX 5000–5999Assigned METROPCS, INC. 5562 IRVING TX
2005-09-19 972-999-6XXX 6000–6999Assigned METROPCS, INC. 5562 IRVING TX
2005-09-19 972-999-7XXX 7000–7999Assigned METROPCS, INC. 5562 IRVING TX
2005-09-12 972-635-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROYSE CITY TX
2005-09-01 972-974-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-31 972-704-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C FRISCO TX
2005-08-24 972-428-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CARROLLTON TX
2005-08-24 972-428-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CARROLLTON TX
2005-08-23 972-207-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-207-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-804-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-804-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-23 972-804-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-08-22 972-838-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2005-08-15 972-646-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BARDWELL TX
2005-08-05 972-464-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
2005-08-05 972-464-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
2005-08-05 972-961-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROCKWALL TX
2005-07-28 972-538-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LEWISVILLE TX
2005-07-19 972-795-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2005-07-18 972-207-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-18 972-207-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-18 972-804-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-18 972-804-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-18 972-804-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-18 972-804-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2005-07-14 972-795-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI 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.