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
2022-01-09 971-374-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-01-09 971-382-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-01-09 971-398-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-01-09 971-406-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2021-12-30 971-367-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F HOOD LAND OR
2021-12-30 971-422-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F VERNONIA OR
2021-12-29 971-414-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-12-29 971-414-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-12-29 971-416-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEAVERTON OR
2021-12-14 971-402-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F AMITY OR
2021-12-13 971-771-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DAYTON OR
2021-11-24 971-414-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-11-24 971-414-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-11-24 971-414-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-11-24 971-414-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-11-23 971-417-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2021-11-23 971-417-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2021-11-23 971-417-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2021-11-22 971-326-4XXX 4000–4999Assigned TELNYX LLC 073H SEASIDE OR
2021-11-22 971-465-0XXX 0000–0999Assigned TELNYX LLC 073H DALLAS OR
2021-11-17 971-287-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2021-11-17 971-387-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2021-11-17 971-387-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2021-11-17 971-812-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E SCAPPOOSE OR
2021-11-17 971-812-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E SCAPPOOSE OR
2021-11-15 971-408-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-15 971-408-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-15 971-408-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-15 971-408-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-15 971-408-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-15 971-408-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-11-12 971-771-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DAYTON OR
2021-11-10 971-403-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASTORIA OR
2021-11-10 971-899-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F RAINIER OR
2021-11-09 971-418-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WARRENTON OR
2021-11-09 971-419-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-11-09 971-419-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-11-09 971-419-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-11-09 971-419-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-11-08 971-363-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ST HELENS OR
2021-11-08 971-529-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-11-02 971-289-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DALLAS OR
2021-11-02 971-571-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRESHAM OR
2021-11-01 971-416-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEAVERTON OR
2021-10-28 971-385-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWBERG OR
2021-10-28 971-406-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2021-10-28 971-406-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2021-10-28 971-417-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-10-28 971-417-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-10-28 971-417-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 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.