NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 608
ONVOY, LLC - WI 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 4
NEW CINGULAR WIRELESS PCS, LLC - IL 1
AHOI 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
2018-11-14 608-820-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MIDDLETON WI
2018-11-07 608-949-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2018-11-07 608-949-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2018-11-06 608-865-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GALESVILLE WI
2018-11-01 608-901-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JANESVILLE WI
2018-11-01 608-901-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JANESVILLE WI
2018-10-30 608-949-9XXX 9000–9999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MADISON WI
2018-10-29 608-377-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C TOMAH WI
2018-10-26 608-530-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JANESVILLE WI
2018-10-18 608-400-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-10-18 608-400-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-10-18 608-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-10-18 608-688-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2018-10-10 608-949-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2018-10-09 608-540-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLMEN WI
2018-10-05 608-459-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 SPG GREEN WI
2018-10-04 608-581-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARABOO WI
2018-10-03 608-802-0XXX 0000–0999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F BELOIT WI
2018-09-28 608-889-9XXX 9000–9999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F STOUGHTON WI
2018-09-17 608-636-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 NEW GLARUS WI
2018-09-13 608-949-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2018-09-07 608-530-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 JANESVILLE WI
2018-09-07 608-912-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DE FOREST WI
2018-09-05 608-426-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONROE WI
2018-09-05 608-733-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2018-09-05 608-733-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2018-09-04 608-949-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MADISON WI
2018-08-23 608-640-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2018-08-21 608-351-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WEST SALEM WI
2018-08-20 608-480-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2018-08-20 608-530-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2018-08-14 608-667-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C LA CROSSE WI
2018-08-13 608-478-1XXX 1000–1999Assigned TDS METROCOM, LLC 520K SUNPRAIRIE WI
2018-08-13 608-733-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2018-08-09 608-982-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2018-08-09 608-982-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2018-08-09 608-982-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2018-08-09 608-982-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2018-08-06 608-802-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C BELOIT WI
2018-08-06 608-802-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BELOIT WI
2018-08-01 608-383-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHLD CTR WI
2018-07-24 608-470-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C EDGERTON WI
2018-07-24 608-597-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MCFARLAND WI
2018-07-19 608-447-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C BRODHEAD WI
2018-07-19 608-455-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C BROOKLYN WI
2018-07-19 608-676-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C CLINTON WI
2018-07-19 608-683-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE WI
2018-07-19 608-699-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C CAMBRIDGE WI
2018-07-19 608-708-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C DEERFIELD WI
2018-07-19 608-879-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C ORFORDVL WI

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.