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
2016-07-22 971-865-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-07-21 971-719-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2016-07-21 971-719-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2016-06-29 971-444-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E WOODBURN OR
2016-06-27 971-328-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 RAINIER OR
2016-06-27 971-930-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-06-24 971-318-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F AMITY OR
2016-06-23 971-757-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ST HELENS OR
2016-06-17 971-707-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2016-06-17 971-707-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2016-06-13 971-401-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-06-13 971-401-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-06-13 971-401-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-06-13 971-940-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-06-03 971-930-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2016-06-02 971-401-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-06-02 971-401-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-06-02 971-401-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-06-02 971-401-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-05-20 971-724-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2016-05-18 971-940-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORTLAND OR
2016-05-17 971-401-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-05-17 971-401-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-05-17 971-401-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-05-11 971-724-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEAVERTON OR
2016-05-06 971-724-4XXX 4000–4999Assigned METROPCS, INC. 5562 BEAVERTON OR
2016-05-04 971-606-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2016-05-04 971-606-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2016-04-28 971-413-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-04-28 971-413-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-04-28 971-413-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-04-28 971-413-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-04-28 971-413-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-04-28 971-727-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2016-04-28 971-727-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2016-04-25 971-412-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2016-04-18 971-347-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2016-04-07 971-347-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2016-04-05 971-220-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRESHAM OR
2016-03-31 971-517-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2016-03-31 971-601-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEASIDE OR
2016-03-31 971-612-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-03-31 971-612-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-03-31 971-707-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2016-03-18 971-308-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E CANNON BCH OR
2016-03-18 971-308-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E CANNON BCH OR
2016-03-18 971-601-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E SEASIDE OR
2016-03-18 971-601-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E SEASIDE OR
2016-03-18 971-606-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2016-03-18 971-704-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ASTORIA 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.