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
2018-07-13 972-482-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-482-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-504-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-504-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-504-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-504-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-13 972-903-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2018-07-13 972-903-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2018-07-03 972-544-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FERRIS TX
2018-06-29 972-430-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C BLUE RIDGE TX
2018-06-28 972-645-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C ITALY TX
2018-06-25 972-440-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARROLLTON TX
2018-06-20 972-440-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARROLLTON TX
2018-06-19 972-503-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-503-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-677-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-677-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-776-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-792-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-889-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-942-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-942-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-19 972-942-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DALLAS TX
2018-06-18 972-520-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-520-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-520-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-520-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-520-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-520-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-06-18 972-942-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DALLAS TX
2018-06-15 972-736-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K PRINCETON TX
2018-05-08 972-626-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-05-08 972-626-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2018-04-30 972-520-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-04-30 972-942-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J DALLAS TX
2018-04-19 972-440-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARROLLTON TX
2018-04-19 972-942-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-04-19 972-942-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-04-09 972-942-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DALLAS TX
2018-04-04 972-520-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PLANO TX
2018-04-04 972-520-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PLANO TX
2018-04-04 972-520-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PLANO TX
2018-03-29 972-703-0XXX 0000–0999Assigned METROPCS, INC. 5562 TERRELL TX
2018-03-29 972-703-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TERRELL 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.