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 971
TELEPORT COMMUNICATIONS AMERICA, LLC - OR 35
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
2023-10-09 971-467-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2022-03-03 971-802-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 SHERIDAN OR
2021-05-05 971-372-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 STAYTON OR
2019-06-18 971-286-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 WARRENTON OR
2019-01-21 971-999-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 YAMHILL OR
2018-08-02 971-315-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 AUMSVLTRNR OR
2018-05-24 971-715-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 AURORA OR
2017-06-27 971-606-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 ASTORIA OR
2017-05-02 971-864-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2017-01-31 971-432-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 WOODBURN OR
2016-03-08 971-370-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 SILVERTON OR
2015-07-14 971-265-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 GARIBALDI OR
2013-01-18 971-309-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 WILLAMINA OR
2012-05-29 971-264-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 NEWBERG OR
2012-05-22 971-261-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 MCMINNVL OR
2010-10-12 971-310-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-10-12 971-310-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 BEAVERTON OR
2010-08-20 971-269-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR

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.