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
2014-06-12 608-207-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-207-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-207-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-207-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-473-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-473-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-473-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-473-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2014-06-12 608-554-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 JANESVILLE WI
2014-06-06 608-208-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 JANESVILLE WI
2014-06-06 608-350-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MAUSTON WI
2014-06-06 608-450-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OXFORD WI
2014-06-06 608-472-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADAMS WI
2014-06-06 608-552-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAMPDOUGLS WI
2014-06-04 608-518-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2014-05-29 608-472-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ADAMS WI
2014-05-29 608-676-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CLINTON WI
2014-05-27 608-475-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 RICHLD CTR WI
2014-05-20 608-286-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-291-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OREGON WI
2014-05-20 608-433-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA CROSSE WI
2014-05-20 608-512-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-572-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-709-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-709-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-886-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-05-20 608-957-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MADISON WI
2014-04-30 608-518-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LA CROSSE WI
2014-04-29 608-495-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K REEDSBURG WI
2014-04-17 608-284-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2014-04-17 608-377-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 TOMAH WI
2014-04-10 608-709-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2014-04-07 608-632-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WESTBY WI
2014-03-27 608-319-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DODGEVILLE WI
2014-03-21 608-501-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 STOUGHTON WI
2014-03-19 608-728-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 JANESVILLE WI
2014-03-14 608-618-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2014-03-14 608-618-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2014-03-07 608-370-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 SAUK CITY WI
2014-03-07 608-622-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2014-03-05 608-519-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LA CROSSE WI
2014-03-03 608-260-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2014-03-03 608-402-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BARABOO WI
2014-03-03 608-422-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 MADISON WI
2014-02-25 608-312-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELOIT WI
2014-02-25 608-485-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 BOSCOBEL WI
2014-02-25 608-495-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 REEDSBURG WI
2014-02-25 608-636-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 NEW GLARUS WI
2014-02-25 608-842-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DE FOREST WI
2014-02-25 608-897-5XXX 5000–5999Assigned UNITED STATES CELLULAR - WI 6274 BRODHEAD 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.