NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
TELEPORT COMMUNICATIONS AMERICA, LLC - WA 42
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
2026-07-24 509-729-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 WENATCHEE WA
2023-04-20 509-920-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CHEWELAH WA
2021-12-23 509-580-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SELAH WA
2021-06-29 509-365-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 LYLE WA
2021-05-08 509-503-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SPOKANE WA
2020-10-28 509-794-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 QUINCY WA
2020-04-02 509-857-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 ELLENSBURG WA
2020-03-24 509-589-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 NEWPORT WA
2019-07-25 509-432-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 PULLMAN WA
2019-07-25 509-559-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CHENEY WA
2019-04-11 509-505-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SPOKANE WA
2018-12-20 509-772-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 GOLDENDALE WA
2018-03-27 509-269-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CONNELL WA
2017-05-18 509-219-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 STEVENSON WA
2016-06-14 509-608-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SPOKANE WA
2016-06-14 509-608-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SPOKANE WA
2016-02-19 509-717-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 EPHRATA WA
2015-10-30 509-960-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SPOKANE WA
2015-07-29 509-794-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 QUINCY WA
2015-07-15 509-843-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 POMEROY WA
2015-07-14 509-645-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREWSTER WA
2015-01-09 509-281-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 WH SALMON WA
2012-12-14 509-740-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 OMAK WA
2012-11-20 509-713-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 RICHLAND WA
2012-11-20 509-761-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 MOSES LAKE WA
2012-11-15 509-412-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 PASCO WA
2012-11-14 509-593-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 WALLAWALLA WA
2012-06-26 509-821-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 DEER PARK WA
2012-06-12 509-203-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 GRANDVIEW WA
2012-06-12 509-207-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 REPUBLIC WA
2012-06-12 509-260-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CLE ELUM WA
2012-06-12 509-288-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COLFAX WA
2012-06-12 509-314-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 TOPPENISH WA
2012-06-12 509-382-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 DAYTON WA
2012-06-12 509-439-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SUNNYSIDE WA
2012-06-12 509-563-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COLVILLE WA
2012-06-12 509-633-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COULEE DAM WA
2012-06-12 509-780-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CLARKSTON WA
2012-06-12 509-797-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 QUINCY WA
2012-03-22 509-491-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 KENNEWICK WA
2011-05-24 509-415-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 WENATCHEE WA
2009-06-08 509-426-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 YAKIMA WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.