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
2006-10-06 817-702-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2006-09-29 817-964-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2006-09-28 817-386-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2006-09-27 817-933-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2006-09-27 817-933-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2006-09-27 817-933-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2006-09-15 817-964-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANBURY TX
2006-09-13 817-757-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2006-09-05 817-349-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-386-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT WORTH TX
2006-09-05 817-420-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-2XXX 2000–2999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-4XXX 4000–4999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-6XXX 6000–6999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-09-05 817-902-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2006-08-29 817-479-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NRICHLDHLS TX
2006-08-29 817-851-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-29 817-851-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-29 817-851-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-29 817-879-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-29 817-879-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-29 817-879-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-24 817-546-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2006-08-24 817-546-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2006-08-24 817-546-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2006-08-18 817-724-3XXX 3000–3999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2006-08-18 817-724-7XXX 7000–7999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2006-08-18 817-724-8XXX 8000–8999Assigned METROPCS, INC. 5562 GRAPEVINE TX
2006-08-17 817-653-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GLENDALE TX
2006-08-14 817-653-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-14 817-897-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2006-08-10 817-546-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2006-08-10 817-701-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2006-08-09 817-349-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2006-07-31 817-423-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORT WORTH TX
2006-07-31 817-423-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORT WORTH TX
2006-07-31 817-757-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2006-07-26 817-503-3XXX 3000–3999Assigned METROPCS, INC. 5562 NRICHLDHLS TX
2006-07-26 817-503-5XXX 5000–5999Assigned METROPCS, INC. 5562 NRICHLDHLS TX
2006-07-26 817-673-5XXX 5000–5999Assigned METROPCS, INC. 5562 ARLINGTON TX
2006-07-26 817-673-6XXX 6000–6999Assigned 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.