NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 608
CENTURYLINK COMMUNICATIONS, LLC 99
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
2018-01-30 608-331-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLATTEVL WI
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
2017-10-10 608-569-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BAGLEY WI
2017-10-10 608-859-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEETOWN WI
2017-10-04 608-653-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VERONA WI
2017-10-04 608-899-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WOODMAN WI
2017-09-21 608-850-0XXX 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
2017-04-26 608-748-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FAIRPLAY WI
2016-08-03 608-544-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WITWEN WI
2016-08-03 608-596-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOAPPLERIV WI
2016-08-03 608-677-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO WARREN WI
2016-07-19 608-881-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LA CROSSE WI
2015-12-15 608-598-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-12-15 608-598-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-12-15 608-598-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-12-15 608-598-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-12-15 608-598-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-12-15 608-598-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-05-11 608-440-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON WI
2015-01-29 608-688-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COTTAGEGRV WI
2014-12-19 608-447-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRODHEAD WI
2014-11-26 608-429-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PARDEEVL WI
2014-11-26 608-493-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MERRIMAC WI
2014-11-26 608-564-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONROE CTR WI
2014-11-26 608-987-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MINERAL PT WI
2014-11-25 608-318-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SUNPRAIRIE WI
2014-11-25 608-360-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOGANVILLE WI
2014-11-25 608-383-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RICHLD CTR WI
2014-11-25 608-459-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPG GREEN WI
2014-11-25 608-583-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONE ROCK WI
2014-11-25 608-644-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SAUK CITY WI
2014-11-25 608-655-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARSHALL WI
2014-11-25 608-666-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LYNDON STA WI
2014-11-25 608-844-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WISCONDLLS WI
2014-11-25 608-847-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAUSTON WI
2014-11-25 608-924-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIDGEWAY WI
2014-11-24 608-272-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CATARACT WI
2014-11-24 608-291-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OREGON WI
2014-11-24 608-369-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTFIELD WI
2014-11-24 608-410-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLETON WI
2014-11-24 608-472-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ADAMS WI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.