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 509
CHARTER IP ENABLED SERVICES, LLC 76
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
2025-02-07 509-653-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NACHES WA
2025-02-07 509-673-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TIETON WA
2025-02-07 509-678-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COWICHE WA
2024-09-09 509-404-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DAYTON WA
2020-08-13 509-504-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2019-05-06 509-620-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COULEE DAM WA
2018-10-24 509-873-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2018-09-05 509-895-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2018-07-17 509-470-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WENATCHEE WA
2017-12-20 509-902-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2017-11-06 509-940-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RICHLAND WA
2017-10-04 509-579-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2017-08-28 509-644-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LOON LAKE WA
2017-08-18 509-936-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHEWELAH WA
2017-06-26 509-940-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RICHLAND WA
2017-06-13 509-579-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2016-11-11 509-567-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2016-06-07 509-902-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2016-06-06 509-738-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KETTLE FLS WA
2016-06-01 509-685-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLVILLE WA
2016-03-25 509-316-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2015-10-15 509-876-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WALLAWALLA WA
2015-10-06 509-317-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2015-08-05 509-579-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2014-12-01 509-820-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2014-11-05 509-367-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2014-06-18 509-515-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SUNNYSIDE WA
2014-02-11 509-578-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RICHLAND WA
2014-01-29 509-470-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WENATCHEE WA
2014-01-29 509-476-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OROVILLE WA
2014-01-29 509-792-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2014-01-24 509-221-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2013-12-31 509-571-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2013-10-03 509-201-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ELLENSBURG WA
2013-10-03 509-698-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SELAH WA
2013-10-03 509-968-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ELLENSBURG WA
2013-09-26 509-486-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TONASKET WA
2013-02-19 509-491-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2012-11-02 509-876-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WALLAWALLA WA
2012-11-01 509-557-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OMAK WA
2012-09-10 509-424-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2012-03-27 509-491-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2011-11-28 509-412-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2011-05-20 509-713-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RICHLAND WA
2011-04-26 509-572-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2010-07-01 509-497-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BENTONCITY WA
2010-05-17 509-987-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2010-04-14 509-426-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2010-04-14 509-470-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WENATCHEE WA
2009-02-25 509-396-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK 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.