NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 920
CENTURYLINK COMMUNICATIONS, LLC 70
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
2017-10-04 920-409-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JOHNSONCRK WI
2017-09-21 920-772-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLLINS WI
2017-09-21 920-776-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TISCHMILLS WI
2017-09-21 920-828-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOWARDSGRV WI
2017-09-21 920-927-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REESEVILLE WI
2017-09-20 920-507-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHERWOOD WI
2014-12-02 920-260-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARKESAN WI
2014-12-02 920-298-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TWO RIVERS WI
2014-12-02 920-313-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOMIRA WI
2014-12-02 920-464-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHILTON WI
2014-12-02 920-477-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EDEN WI
2014-12-02 920-526-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENBUSH WI
2014-12-02 920-552-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OOSTBURG WI
2014-12-02 920-583-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKFIELD WI
2014-12-02 920-654-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MISHICOT WI
2014-12-02 920-753-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MT CALVARY WI
2014-12-02 920-762-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KIEL WI
2014-12-02 920-781-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELKHART LK WI
2014-12-02 920-827-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWHOLSTEN WI
2014-12-02 920-999-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST CLOUD WI
2014-12-01 920-533-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMPBELSPT WI
2014-12-01 920-561-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATERLOO WI
2014-11-28 920-234-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHEBOGNFLS WI
2014-11-28 920-345-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAUPUN WI
2014-11-28 920-545-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATERTOWN WI
2014-11-26 920-214-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAYVILLE WI
2014-11-26 920-297-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKE MILLS WI
2014-11-26 920-355-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAPLETON WI
2014-11-26 920-626-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLUMBUS WI
2014-11-26 920-689-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BURNETT WI
2014-11-03 920-306-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEAVER DAM WI
2014-11-03 920-349-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HUSTISFORD WI
2014-11-03 920-447-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RANDOMLAKE WI
2014-11-03 920-524-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRILLION WI
2014-11-03 920-542-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FTATKINSON WI
2014-11-03 920-581-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FONDDU LAC WI
2014-11-03 920-675-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JEFFERSON WI
2014-11-03 920-694-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHEBOYGAN WI
2014-11-03 920-717-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MANITOWOC WI
2014-11-03 920-786-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HORICON WI
2014-10-23 920-228-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SEYMOUR WI
2014-10-23 920-241-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DE PERE WI
2014-10-23 920-352-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VAN DYNE WI
2014-10-23 920-363-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BAILEYSHBR WI
2014-10-23 920-367-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DENMARK WI
2014-10-23 920-369-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREEN LAKE WI
2014-10-23 920-372-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KAUKAUNA WI
2014-10-23 920-376-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OSHKOSH WI
2014-10-23 920-399-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OCONTO FLS WI
2014-10-23 920-415-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LTL CHUTE 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.