NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2006-07-26 817-716-6XXX 6000–6999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-07-26 817-716-7XXX 7000–7999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-07-26 817-716-8XXX 8000–8999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-07-18 817-716-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-07-18 817-716-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-07-18 817-912-6XXX 6000–6999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 GRAPEVINE TX
2006-07-18 817-912-7XXX 7000–7999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 GRAPEVINE TX
2006-07-18 817-912-8XXX 8000–8999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 GRAPEVINE TX
2006-07-18 817-912-9XXX 9000–9999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 GRAPEVINE TX
2006-07-17 817-757-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2006-07-17 817-964-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANBURY TX
2006-07-13 817-710-0XXX 0000–0999Assigned WESTEL, INC. - TX 7399 FORT WORTH TX
2006-06-15 817-378-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C FORT WORTH TX
2006-06-15 817-538-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ARLINGTON TX
2006-06-12 817-716-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-06-12 817-716-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-06-09 817-494-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C EULESS TX
2006-05-30 817-864-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 EULESS TX
2006-05-30 817-864-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 EULESS TX
2006-05-30 817-864-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 EULESS TX
2006-05-26 817-339-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-05-26 817-349-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-05-26 817-349-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-05-26 817-350-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-05-26 817-405-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MANSFIELD TX
2006-05-25 817-739-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-739-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-897-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-897-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-25 817-897-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-05-08 817-932-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GLENDALE TX
2006-05-01 817-716-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-05-01 817-716-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-05-01 817-716-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2006-04-19 817-357-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEBURNE TX
2006-04-19 817-776-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANBURY TX
2006-04-13 817-349-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-04-13 817-349-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2006-04-13 817-902-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-04-13 817-902-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-04-11 817-704-8XXX 8000–8999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-04-11 817-704-9XXX 9000–9999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-04-11 817-784-5XXX 5000–5999Assigned METROPCS, INC. 5562 ARLINGTON TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.