NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 971
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 8
ONVOY, LLC - OR 2
T-MOBILE USA, INC. 1
NEW CINGULAR WIRELESS PCS, LLC 1
EXIANT COMMUNICATIONS LLC 1
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
2021-06-24 971-314-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F VERNONIA OR
2021-06-22 971-289-3XXX 3000–3999Assigned TELNYX LLC 073H DALLAS OR
2021-06-18 971-396-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-06-18 971-396-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-06-17 971-398-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2021-06-17 971-398-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2021-06-17 971-398-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2021-06-09 971-394-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2021-06-09 971-837-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEAVERTON OR
2021-06-01 971-837-6XXX 6000–6999Assigned COMMIO, LLC 939H BEAVERTON OR
2021-06-01 971-837-7XXX 7000–7999Assigned COMMIO, LLC 939H BEAVERTON OR
2021-06-01 971-837-8XXX 8000–8999Assigned COMMIO, LLC 939H BEAVERTON OR
2021-06-01 971-837-9XXX 9000–9999Assigned COMMIO, LLC 939H BEAVERTON OR
2021-05-27 971-378-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2021-05-27 971-380-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2021-05-20 971-253-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-05-20 971-253-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-05-20 971-272-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-05-20 971-390-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E JEWELL OR
2021-05-17 971-988-2XXX 2000–2999Assigned COMMIO, LLC 939H ASTORIA OR
2021-05-17 971-988-4XXX 4000–4999Assigned COMMIO, LLC 939H ASTORIA OR
2021-05-17 971-988-5XXX 5000–5999Assigned COMMIO, LLC 939H ASTORIA OR
2021-05-17 971-988-6XXX 6000–6999Assigned COMMIO, LLC 939H ASTORIA OR
2021-05-13 971-394-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2021-05-05 971-372-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 STAYTON OR
2021-05-05 971-397-0XXX 0000–0999Assigned TELNYX LLC 073H NORTH PL OR
2021-05-04 971-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DALLAS OR
2021-04-28 971-771-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E DAYTON OR
2021-04-26 971-465-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 DALLAS OR
2021-04-16 971-610-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2021-04-14 971-385-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2021-04-14 971-396-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2021-04-14 971-899-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E RAINIER OR
2021-04-14 971-899-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E RAINIER OR
2021-04-12 971-396-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-04-12 971-396-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-04-12 971-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J BEAVERTON OR
2021-04-09 971-353-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-04-05 971-379-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-04-05 971-379-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-04-05 971-379-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-04-05 971-379-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-04-05 971-379-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-04-05 971-389-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-04-05 971-389-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-04-05 971-389-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-04-05 971-389-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-04-05 971-389-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-04-01 971-899-7XXX 7000–7999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F RAINIER OR
2021-03-31 971-379-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 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.