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
2010-07-16 608-448-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BARABOO WI
2010-07-15 608-514-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-07-15 608-515-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-07-15 608-616-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-07-15 608-622-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-07-09 608-609-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-07-09 608-609-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-07-08 608-515-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2010-07-07 608-216-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-07-07 608-216-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-07-01 608-499-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F HAZELGREEN WI
2010-06-23 608-879-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ORFORDVL WI
2010-06-15 608-352-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K JANESVILLE WI
2010-06-09 608-665-6XXX 6000–6999Assigned WISCONSIN BELL INC 9327 MADISON WI
2010-06-09 608-665-7XXX 7000–7999Assigned WISCONSIN BELL INC 9327 MADISON WI
2010-06-09 608-665-8XXX 8000–8999Assigned WISCONSIN BELL INC 9327 MADISON WI
2010-06-08 608-665-4XXX 4000–4999Assigned WISCONSIN BELL INC 9327 MADISON WI
2010-06-08 608-665-5XXX 5000–5999Assigned WISCONSIN BELL INC 9327 MADISON WI
2010-06-02 608-777-0XXX 0000–0999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-1XXX 1000–1999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-2XXX 2000–2999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-3XXX 3000–3999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-4XXX 4000–4999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-5XXX 5000–5999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-6XXX 6000–6999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-7XXX 7000–7999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-8XXX 8000–8999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-06-02 608-777-9XXX 9000–9999Assigned MT. VERNON TEL. CO. 0917 VERONA WI
2010-05-24 608-247-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JANESVILLE WI
2010-05-24 608-291-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OREGON WI
2010-05-24 608-509-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-05-24 608-509-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-05-24 608-509-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-05-24 608-515-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-05-21 608-514-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-05-21 608-515-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-05-21 608-515-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2010-05-21 608-729-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2010-05-18 608-556-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-05-18 608-556-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2010-05-12 608-719-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STOUGHTON WI
2010-05-05 608-844-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2010-04-09 608-433-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2010-03-31 608-432-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WISCONDLLS WI
2010-03-30 608-566-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PORTAGE WI
2010-03-22 608-477-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BARABOO WI
2010-03-11 608-403-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 ADAMS WI
2010-02-22 608-218-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2010-02-22 608-593-0XXX 0000–0999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E REEDSBURG WI
2010-02-22 608-593-1XXX 1000–1999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E REEDSBURG 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.