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
2011-01-05 608-520-6XXX 6000–6999Assigned METROPCS, INC. 5562 MADISON WI
2011-01-05 608-520-7XXX 7000–7999Assigned METROPCS, INC. 5562 MADISON WI
2010-12-28 608-477-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BARABOO WI
2010-12-21 608-432-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WISCONDLLS WI
2010-12-20 608-535-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-12-16 608-451-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 BANGOR WI
2010-12-15 608-406-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2010-11-19 608-729-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2010-11-19 608-807-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2010-11-19 608-807-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2010-11-18 608-535-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2010-11-12 608-729-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2010-11-10 608-552-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAMPDOUGLS WI
2010-11-10 608-633-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 SPARTA WI
2010-11-09 608-472-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADAMS WI
2010-11-08 608-579-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2010-10-25 608-305-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JANESVILLE WI
2010-10-25 608-620-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MADISON WI
2010-10-25 608-721-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-10-19 608-556-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-10-19 608-556-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-10-18 608-566-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PORTAGE WI
2010-10-14 608-718-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JANESVILLE WI
2010-10-08 608-406-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2010-09-30 608-302-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JANESVILLE WI
2010-09-30 608-466-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BELOIT WI
2010-09-30 608-616-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-09-10 608-556-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-09-08 608-291-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OREGON WI
2010-09-07 608-520-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-09-02 608-406-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2010-08-23 608-957-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-08-16 608-247-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 JANESVILLE WI
2010-08-16 608-886-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-08-16 608-886-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-08-09 608-609-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-08-09 608-609-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-08-06 608-313-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BELOIT WI
2010-08-06 608-492-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F STOUGHTON WI
2010-08-06 608-561-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2010-08-06 608-567-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 TOMAH WI
2010-08-06 608-579-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2010-08-06 608-807-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2010-07-28 608-763-9XXX 9000–9999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F POTOSI WI
2010-07-23 608-402-0XXX 0000–0999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E BARABOO WI
2010-07-23 608-402-1XXX 1000–1999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E BARABOO WI
2010-07-23 608-402-2XXX 2000–2999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E BARABOO WI
2010-07-19 608-439-8XXX 8000–8999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F SOUTHWAYNE WI
2010-07-19 608-491-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F SHULLSBURG WI
2010-07-19 608-705-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F BROWNTOWN 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.