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
2023-04-11 971-451-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2023-04-11 971-451-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2023-04-11 971-451-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2023-03-07 971-416-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-07 971-448-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-07 971-448-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-07 971-448-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-07 971-448-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-07 971-448-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-03-02 971-449-2XXX 2000–2999Assigned NUSO, LLC 732J PORTLAND OR
2023-02-23 971-372-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 STAYTON OR
2023-02-20 971-443-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E SALEM OR
2023-02-17 971-424-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2023-02-17 971-917-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-02-17 971-917-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-02-17 971-917-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-02-17 971-917-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-02-17 971-917-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-02-10 971-917-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-02-07 971-446-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2023-01-30 971-299-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GOVENTCAMP OR
2023-01-30 971-342-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CANNON BCH OR
2023-01-30 971-390-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 JEWELL OR
2023-01-30 971-399-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 FALLS CITY OR
2023-01-27 971-364-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CHARBONNEU OR
2023-01-27 971-391-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ROCKAWAY OR
2023-01-27 971-448-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-01-27 971-448-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-01-27 971-448-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-01-27 971-448-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-01-27 971-448-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-01-27 971-588-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GARIBALDI OR
2023-01-27 971-715-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 AURORA OR
2023-01-27 971-788-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CLOVERDALE OR
2023-01-27 971-791-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BAY CITY OR
2023-01-13 971-446-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2023-01-13 971-447-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-13 971-447-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-13 971-447-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-13 971-447-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-12 971-309-0XXX 0000–0999Assigned TELNYX LLC 073H WILLAMINA OR
2023-01-12 971-441-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2023-01-12 971-441-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2023-01-12 971-441-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2023-01-12 971-441-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2023-01-12 971-441-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2023-01-12 971-471-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-12 971-471-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-12 971-471-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-01-12 971-802-9XXX 9000–9999Assigned TELNYX LLC 073H SHERIDAN 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.