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
2006-02-28 972-215-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-251-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-261-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-273-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-273-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-313-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-951-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-953-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-983-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-983-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-28 972-983-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-02-23 972-325-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SEAGOVILLE TX
2006-02-22 972-906-8XXX 8000–8999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 LEWISVILLE TX
2006-02-14 972-369-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2006-02-14 972-369-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2006-02-14 972-369-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2006-02-14 972-561-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-02-14 972-809-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-02-14 972-809-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-02-14 972-809-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-02-14 972-890-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-02-13 972-375-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-02-08 972-249-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-623-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-834-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-834-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-834-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-854-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-02-08 972-854-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-31 972-974-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-24 972-215-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-01-24 972-259-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2006-01-24 972-268-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2006-01-24 972-268-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2006-01-17 972-834-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-01-17 972-834-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-01-17 972-834-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-01-17 972-834-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-01-17 972-834-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2006-01-11 972-835-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-01-11 972-835-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 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.