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
2012-09-14 817-941-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-14 817-941-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-09-10 817-945-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2012-09-07 817-984-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F FORT WORTH TX
2012-08-30 817-502-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2012-08-30 817-502-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2012-08-30 817-608-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARLINGTON TX
2012-08-15 817-225-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MANSFIELD TX
2012-08-15 817-381-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2012-08-15 817-631-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2012-08-03 817-479-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NRICHLDHLS TX
2012-08-03 817-722-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAPEVINE TX
2012-08-03 817-755-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SPRINGTOWN TX
2012-07-30 817-541-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ROANOKE TX
2012-07-26 817-945-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2012-07-20 817-730-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2012-07-20 817-730-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2012-07-20 817-730-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2012-05-25 817-405-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANSFIELD TX
2012-05-25 817-527-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRAPEVINE TX
2012-05-24 817-310-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GRAPEVINE TX
2012-05-24 817-631-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2012-05-17 817-523-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2012-05-17 817-668-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2012-05-03 817-345-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C NRICHLDHLS TX
2012-04-27 817-693-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C ROANOKE TX
2012-04-27 817-693-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROANOKE TX
2012-04-18 817-406-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C AZLE TX
2012-04-18 817-435-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MANSFIELD TX
2012-04-18 817-580-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C ATLAS TX
2012-04-18 817-786-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EULESS TX
2012-04-13 817-203-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F GRAPEVINE TX
2012-04-13 817-203-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F GRAPEVINE TX
2012-04-13 817-203-6XXX 6000–6999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F GRAPEVINE TX
2012-03-20 817-587-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ALVARADO TX
2012-03-20 817-612-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J AZLE TX
2012-03-05 817-606-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2012-02-29 817-608-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2012-02-17 817-900-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2012-02-17 817-953-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2012-02-13 817-730-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORT WORTH TX
2012-02-13 817-730-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2012-02-13 817-840-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2012-02-13 817-862-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2012-02-13 817-884-6XXX 6000–6999Assigned METROPCS, INC. 5562 FORT WORTH 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.