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
2023-07-05 971-370-1XXX 1000–1999Assigned TELNYX LLC 073H SILVERTON OR
2023-07-05 971-439-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2023-07-05 971-439-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2023-07-05 971-447-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2023-07-05 971-671-0XXX 0000–0999Assigned TELNYX LLC 073H KNAPPA OR
2023-06-22 971-446-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-06-22 971-446-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-06-22 971-449-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-06-20 971-403-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ASTORIA OR
2023-06-16 971-437-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CANBYNEEDY OR
2023-06-15 971-425-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-06-15 971-425-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-06-15 971-425-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-06-15 971-452-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BEAVER OR
2023-06-13 971-372-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 STAYTON OR
2023-06-08 971-431-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRESHAM OR
2023-05-31 971-917-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-05-26 971-465-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2023-05-26 971-465-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2023-05-19 971-465-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DALLAS OR
2023-05-18 971-668-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RAINIER OR
2023-05-05 971-450-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-450-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-450-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-451-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-05-05 971-746-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MCMINNVL OR
2023-04-25 971-443-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SALEM OR
2023-04-24 971-818-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AURORA OR
2023-04-20 971-443-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2023-04-20 971-443-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2023-04-20 971-443-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2023-04-20 971-443-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2023-04-20 971-668-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RAINIER OR
2023-04-19 971-368-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J AUMSVLTRNR OR
2023-04-11 971-431-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2023-04-11 971-446-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E SALEM OR
2023-04-11 971-446-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E SALEM OR
2023-04-11 971-450-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-04-11 971-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 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.