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
Clear Download CSV ↓
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 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.