NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 4
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
2017-10-23 608-507-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BOAZ WI
2017-10-23 608-595-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUE RIVER WI
2017-10-23 608-887-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GAYS MILLS WI
2017-10-23 608-955-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOLDIRSGRV WI
2017-10-19 608-733-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2017-10-19 608-733-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2017-10-10 608-517-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FENNIMORE WI
2017-10-10 608-569-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BAGLEY WI
2017-10-10 608-859-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEETOWN WI
2017-10-05 608-733-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2017-10-04 608-653-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VERONA WI
2017-10-04 608-899-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WOODMAN WI
2017-09-29 608-400-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MADISON WI
2017-09-29 608-400-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MADISON WI
2017-09-29 608-480-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WI 6274 STOUGHTON WI
2017-09-29 608-708-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DEERFIELD WI
2017-09-29 608-912-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F DE FOREST WI
2017-09-26 608-581-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BARABOO WI
2017-09-25 608-580-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILTON WI
2017-09-22 608-736-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 EVANSVILLE WI
2017-09-21 608-636-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEW GLARUS WI
2017-09-21 608-850-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAUNAKEE WI
2017-09-20 608-379-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOUNT HOPE WI
2017-09-20 608-568-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DICKEYVL WI
2017-09-20 608-691-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MT VERNON WI
2017-09-20 608-725-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CASSVILLE WI
2017-09-20 608-813-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLACKEARTH WI
2017-09-20 608-885-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LANCASTER WI
2017-09-14 608-615-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2017-09-12 608-733-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-12 608-733-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-12 608-733-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-11 608-683-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PORTAGE WI
2017-09-07 608-460-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SAUK CITY WI
2017-09-06 608-471-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-06 608-471-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-06 608-471-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-06 608-471-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-06 608-471-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-08-23 608-471-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MADISON WI
2017-08-23 608-471-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MADISON WI
2017-08-23 608-471-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MADISON WI
2017-08-16 608-471-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MADISON WI
2017-08-09 608-925-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHWAYNE WI
2017-08-09 608-925-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHWAYNE WI
2017-08-09 608-925-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHWAYNE WI
2017-07-17 608-496-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CAMBRIDGE WI
2017-07-14 608-579-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2017-07-07 608-510-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRATIOT WI
2017-07-05 608-480-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F STOUGHTON 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.