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
2006-02-27 817-699-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-27 817-699-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-27 817-699-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-27 817-699-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-27 817-699-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-27 817-699-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2006-02-17 817-258-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-2XXX 2000–2999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-4XXX 4000–4999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-6XXX 6000–6999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-298-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-317-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-333-4XXX 4000–4999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-333-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-333-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-333-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-344-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-344-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-344-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-02-17 817-505-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-02-17 817-505-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-02-17 817-505-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-02-17 817-505-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-02-17 817-505-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-02-14 817-374-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2006-02-14 817-449-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2006-02-14 817-458-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2006-02-14 817-458-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2006-02-07 817-964-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2006-02-07 817-964-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2006-02-07 817-964-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2006-02-01 817-516-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C KENNEDALE TX
2006-02-01 817-537-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C ATLAS TX
2006-02-01 817-576-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C NRICHLDHLS TX
2006-01-31 817-380-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 KELLER TX
2006-01-31 817-709-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-709-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-709-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-734-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-734-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-734-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-734-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-932-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-932-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-932-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-01-31 817-932-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE 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.