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
2013-07-08 971-276-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-07-08 971-801-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-07-08 971-801-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-07-03 971-544-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2013-07-02 971-242-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2013-06-25 971-312-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-06-25 971-777-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-06-25 971-777-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-06-25 971-801-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2013-06-25 971-801-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2013-06-24 971-254-0XXX 0000–0999Assigned METROPCS, INC. 5562 PORTLAND OR
2013-06-24 971-317-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEAVERTON OR
2013-06-14 971-801-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-06-07 971-256-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-06-07 971-320-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SEASIDE OR
2013-06-07 971-320-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SEASIDE OR
2013-06-07 971-544-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-06-07 971-777-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-06-07 971-802-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHERIDAN OR
2013-05-29 971-246-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2013-05-29 971-444-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOODBURN OR
2013-05-22 971-308-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CANNON BCH OR
2013-05-22 971-320-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEASIDE OR
2013-05-20 971-717-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-05-20 971-717-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-05-20 971-717-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-05-14 971-444-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2013-05-14 971-777-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-05-10 971-717-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2013-05-10 971-717-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2013-05-07 971-312-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-04-24 971-274-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRESHAM OR
2013-04-24 971-301-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E SALEM OR
2013-04-24 971-317-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2013-04-24 971-317-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2013-04-24 971-317-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2013-04-24 971-717-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2013-04-24 971-717-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2013-04-24 971-717-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2013-04-11 971-217-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2013-04-11 971-301-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SALEM OR
2013-04-11 971-301-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SALEM OR
2013-04-11 971-301-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SALEM OR
2013-04-11 971-317-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2013-04-11 971-317-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2013-04-08 971-202-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2013-04-08 971-251-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F RAINIER OR
2013-03-20 971-888-0XXX 0000–0999Assigned METROPCS, INC. 5562 PORTLAND OR
2013-03-20 971-888-1XXX 1000–1999Assigned METROPCS, INC. 5562 PORTLAND OR
2013-03-20 971-888-3XXX 3000–3999Assigned METROPCS, INC. 5562 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.