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
2021-01-06 971-381-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-01-06 971-381-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-01-06 971-895-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2021-01-06 971-895-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2020-12-30 971-367-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F HOOD LAND OR
2020-12-30 971-899-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F RAINIER OR
2020-12-16 971-389-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2020-12-14 971-977-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2020-12-14 971-977-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2020-12-09 971-268-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-268-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-268-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-268-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-369-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2020-12-09 971-369-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2020-12-09 971-369-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2020-12-09 971-384-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-384-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-09 971-384-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2020-12-04 971-387-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2020-12-04 971-387-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2020-11-19 971-326-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEASIDE OR
2020-11-15 971-517-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2020-11-11 971-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SCAPPOOSE OR
2020-11-06 971-571-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2020-11-06 971-571-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2020-11-06 971-571-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2020-11-06 971-571-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2020-11-04 971-385-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWBERG OR
2020-11-04 971-385-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWBERG OR
2020-10-25 971-412-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2020-10-23 971-977-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2020-10-23 971-977-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2020-10-13 971-369-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2020-10-13 971-379-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2020-10-13 971-379-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2020-10-13 971-380-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2020-10-13 971-382-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2020-10-06 971-432-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOODBURN OR
2020-10-06 971-432-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOODBURN OR
2020-10-02 971-381-6XXX 6000–6999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F CLACKAMAS OR
2020-10-02 971-382-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SALEM OR
2020-09-22 971-253-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 STFRD-SNDY OR
2020-09-18 971-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J PORTLAND OR
2020-09-17 971-384-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON 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.