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 360
CENTURYLINK COMMUNICATIONS, LLC 47
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
2018-09-21 360-706-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OLYMPIA WA
2017-02-27 360-686-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YACOLT WA
2016-02-17 360-763-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OLYMPIA WA
2016-01-19 360-205-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BELFAIR WA
2016-01-19 360-842-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREMERTON WA
2015-06-02 360-869-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VANCOUVER WA
2015-05-29 360-367-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ENUMCLAW WA
2015-05-27 360-207-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PT ANGELES WA
2015-05-27 360-519-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORT ORCH WA
2015-05-27 360-812-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHATCOMCTY WA
2015-05-27 360-979-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SILVERDALE WA
2015-05-27 360-986-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ABERDEEN WA
2015-05-11 360-369-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BATTLEGRND WA
2015-05-11 360-747-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONGVIEW WA
2014-06-26 360-841-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WOODLAND WA
2014-06-26 360-954-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMAS WA
2014-03-12 360-587-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SKYKOMISH WA
2014-03-11 360-215-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORTLUDLOW WA
2014-03-11 360-234-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BUCKLEY WA
2014-03-11 360-469-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLACKDIMND WA
2014-03-11 360-663-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRYSTAL MT WA
2014-03-11 360-669-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRALIA WA
2014-03-11 360-717-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOODSPORT WA
2014-03-11 360-858-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROCHESTER WA
2014-03-11 360-948-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHEHALIS WA
2014-01-22 360-857-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIDGEFIELD WA
2014-01-17 360-967-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CASTLEROCK WA
2013-11-27 360-327-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FORKS WA
2013-11-27 360-638-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KINGSTON WA
2013-11-27 360-732-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHIMACMCTR WA
2013-11-27 360-796-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOOD CANAL WA
2013-11-26 360-208-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOUTH BEND WA
2013-11-26 360-381-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PTTOWNSEND WA
2013-11-26 360-467-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNOHOMISH WA
2013-11-26 360-472-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SAN JUAN WA
2013-11-26 360-492-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORTON WA
2013-11-26 360-495-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELMA WA
2013-11-26 360-499-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAK HARBOR WA
2013-11-26 360-549-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHELTON WA
2013-11-26 360-569-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ASHFORD WA
2013-11-26 360-889-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SO PRAIRIE WA
2013-11-26 360-965-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARYSVILLE WA
2013-11-13 360-214-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONG BEACH WA
2013-11-13 360-686-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YACOLT WA
2013-11-13 360-849-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CATHLAMET WA
2013-11-06 360-445-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MT VERNON WA
2013-08-12 360-994-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POULSBO WA

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.