NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 817
ONVOY, LLC - TX 2
EXIANT COMMUNICATIONS LLC 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
2007-11-27 817-479-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NRICHLDHLS TX
2007-11-26 817-524-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-11-26 817-948-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-11-26 817-948-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-11-26 817-948-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-11-21 817-484-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2007-11-20 817-983-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-11-15 817-607-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2007-11-02 817-964-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2007-10-26 817-984-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2007-10-26 817-989-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2007-10-18 817-876-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-10-18 817-876-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-10-18 817-876-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-10-15 817-209-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-209-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-209-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-209-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-209-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-226-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-226-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-226-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-226-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-10-15 817-404-2XXX 2000–2999Assigned METROPCS, INC. 5562 ARLINGTON TX
2007-10-11 817-550-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2007-09-28 817-889-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2007-09-28 817-889-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2007-09-28 817-889-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2007-09-27 817-724-4XXX 4000–4999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2007-09-27 817-724-5XXX 5000–5999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2007-09-27 817-724-6XXX 6000–6999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2007-09-25 817-757-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2007-09-25 817-948-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-25 817-948-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-24 817-489-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2007-09-12 817-984-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2007-09-07 817-948-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-07 817-948-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-07 817-948-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-07 817-948-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-07 817-948-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2007-09-06 817-420-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2007-09-04 817-224-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROANOKE TX
2007-08-30 817-719-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-08-30 817-719-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-08-30 817-719-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2007-08-28 817-960-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2007-08-28 817-960-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2007-08-28 817-960-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2007-08-28 817-960-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 ARLINGTON 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.