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
2018-07-19 608-909-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C OREGON WI
2018-07-19 608-975-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BELLEVILLE WI
2018-07-17 608-909-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OREGON WI
2018-07-10 608-405-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2018-07-10 608-481-8XXX 8000–8999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F BELOIT WI
2018-06-28 608-319-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DODGEVILLE WI
2018-06-27 608-461-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BANGOR WI
2018-06-26 608-802-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BELOIT WI
2018-06-25 608-733-6XXX 6000–6999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MADISON WI
2018-06-15 608-530-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 JANESVILLE WI
2018-06-15 608-544-6XXX 6000–6999Assigned TDS METROCOM, LLC 520K WITWEN WI
2018-06-08 608-881-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LA CROSSE WI
2018-06-06 608-982-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-06-06 608-982-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-06-06 608-982-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-05-16 608-480-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STOUGHTON WI
2018-05-15 608-404-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WISCONDLLS WI
2018-05-09 608-615-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2018-05-08 608-979-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 VIROQUA WI
2018-05-04 608-455-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BROOKLYN WI
2018-05-01 608-579-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2018-04-24 608-909-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K OREGON WI
2018-04-18 608-480-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2018-04-18 608-530-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2018-04-18 608-640-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MADISON WI
2018-04-17 608-699-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CAMBRIDGE WI
2018-04-17 608-975-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BELLEVILLE WI
2018-04-16 608-480-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F STOUGHTON WI
2018-04-16 608-618-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2018-04-09 608-480-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STOUGHTON WI
2018-04-04 608-429-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PARDEEVL WI
2018-03-27 608-856-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BELOIT WI
2018-03-27 608-856-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C BELOIT WI
2018-03-26 608-982-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D MADISON WI
2018-03-07 608-400-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-03-07 608-400-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2018-03-05 608-640-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2018-01-30 608-331-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLATTEVL WI
2018-01-23 608-667-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2018-01-23 608-667-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2018-01-19 608-642-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PLATTEVL WI
2017-12-20 608-330-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PLATTEVL WI
2017-12-13 608-667-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LA CROSSE WI
2017-12-11 608-405-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2017-12-06 608-688-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2017-11-13 608-481-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2017-11-13 608-683-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTAGE WI
2017-11-13 608-898-7XXX 7000–7999Assigned METROPCS, INC. 5562 JANESVILLE WI
2017-10-24 608-368-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELOIT WI
2017-10-23 608-481-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C BELOIT 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.