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
2016-06-01 608-881-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LA CROSSE WI
2016-05-31 608-504-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2016-05-31 608-504-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2016-05-31 608-504-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2016-05-31 608-683-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PORTAGE WI
2016-05-19 608-294-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2016-05-19 608-294-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2016-05-19 608-377-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C TOMAH WI
2016-05-19 608-855-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SPARTA WI
2016-05-13 608-474-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ADAMS WI
2016-05-13 608-818-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONTELLO WI
2016-05-11 608-636-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 NEW GLARUS WI
2016-05-09 608-468-8XXX 8000–8999Assigned METROPCS, INC. 5562 FOUNTAINCY WI
2016-05-09 608-615-5XXX 5000–5999Assigned METROPCS, INC. 5562 LA CROSSE WI
2016-05-09 608-615-6XXX 6000–6999Assigned METROPCS, INC. 5562 LA CROSSE WI
2016-05-05 608-304-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2016-04-29 608-504-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C MADISON WI
2016-04-28 608-399-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLMEN WI
2016-04-28 608-399-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLMEN WI
2016-04-28 608-898-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 JANESVILLE WI
2016-04-26 608-447-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BRODHEAD WI
2016-04-14 608-359-7XXX 7000–7999Assigned METROPCS, INC. 5562 JANESVILLE WI
2016-04-14 608-371-0XXX 0000–0999Assigned METROPCS, INC. 5562 JANESVILLE WI
2016-04-14 608-888-3XXX 3000–3999Assigned METROPCS, INC. 5562 MADISON WI
2016-04-14 608-888-4XXX 4000–4999Assigned METROPCS, INC. 5562 MADISON WI
2016-04-07 608-615-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2016-04-07 608-615-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2016-03-25 608-800-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2016-03-23 608-384-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MINERAL PT WI
2016-03-22 608-497-7XXX 7000–7999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2016-03-22 608-877-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STOUGHTON WI
2016-03-21 608-296-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WESTFIELD WI
2016-03-15 608-765-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C RICHMOND WI
2016-03-15 608-765-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C RICHMOND WI
2016-03-11 608-474-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 ADAMS WI
2016-03-09 608-736-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C EVANSVILLE WI
2016-03-09 608-736-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C EVANSVILLE WI
2016-03-04 608-800-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2016-02-26 608-422-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2016-02-24 608-410-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MIDDLETON WI
2016-02-23 608-644-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SAUK CITY WI
2016-02-23 608-842-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 DE FOREST WI
2016-02-19 608-416-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2016-02-19 608-416-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2016-02-17 608-719-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2016-02-17 608-719-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2016-02-16 608-713-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BELOIT WI
2016-02-16 608-856-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C BELOIT WI
2016-02-08 608-800-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2016-02-03 608-208-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C JANESVILLE 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.