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
2019-08-02 608-726-3XXX 3000–3999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F DARLINGTON WI
2019-08-01 608-336-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MONROE WI
2019-07-31 608-387-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C TOMAH WI
2019-07-31 608-401-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MAZOMANIE WI
2019-07-31 608-573-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C POYNETTE WI
2019-07-31 608-580-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MILTON WI
2019-07-31 608-581-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BARABOO WI
2019-07-31 608-737-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C NO FREEDOM WI
2019-07-31 608-766-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C ELROY WI
2019-07-31 608-892-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C WARRENS WI
2019-07-31 608-912-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C DE FOREST WI
2019-07-24 608-380-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PRARIDCHIN WI
2019-07-24 608-404-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WISCONDLLS WI
2019-07-24 608-429-5XXX 5000–5999Assigned MARQUETTE-ADAMS TELEPHONE COOPERATIVE, INC. - WI 408G PARDEEVL WI
2019-07-24 608-683-5XXX 5000–5999Assigned MARQUETTE-ADAMS TELEPHONE COOPERATIVE, INC. - WI 408G PORTAGE WI
2019-07-23 608-315-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 TOMAH WI
2019-07-23 608-540-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 HOLMEN WI
2019-07-17 608-615-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2019-07-16 608-927-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2019-07-08 608-418-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ALMA WI
2019-06-06 608-431-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FOUNTAINCY WI
2019-06-06 608-472-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 ADAMS WI
2019-06-05 608-927-7XXX 7000–7999Assigned UNITED STATES CELLULAR - WI 6274 BELOIT WI
2019-06-03 608-847-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MAUSTON WI
2019-05-30 608-927-8XXX 8000–8999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F BELOIT WI
2019-05-28 608-716-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2019-05-28 608-736-4XXX 4000–4999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F EVANSVILLE WI
2019-05-24 608-580-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILTON WI
2019-05-10 608-600-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C CLINTON WI
2019-05-10 608-600-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C CLINTON WI
2019-05-10 608-680-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BROOKLYN WI
2019-05-10 608-680-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C BROOKLYN WI
2019-05-07 608-901-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 JANESVILLE WI
2019-05-06 608-447-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BRODHEAD WI
2019-05-06 608-447-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C BRODHEAD WI
2019-05-06 608-496-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C CAMBRIDGE WI
2019-05-06 608-496-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C CAMBRIDGE WI
2019-05-06 608-597-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MCFARLAND WI
2019-05-06 608-597-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MCFARLAND WI
2019-05-06 608-688-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2019-05-06 608-688-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2019-05-06 608-708-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C DEERFIELD WI
2019-05-06 608-708-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C DEERFIELD WI
2019-05-06 608-736-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C EVANSVILLE WI
2019-05-06 608-736-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C EVANSVILLE WI
2019-05-06 608-765-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C RICHMOND WI
2019-05-06 608-765-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C RICHMOND WI
2019-05-06 608-879-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2019-05-06 608-879-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2019-05-06 608-909-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C OREGON 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.