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
2023-08-10 971-447-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-08-10 971-456-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-08-10 971-456-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-08-09 971-434-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STFRD-SNDY OR
2023-08-04 971-243-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NEWBERG OR
2023-08-04 971-243-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NEWBERG OR
2023-08-02 971-455-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 WOODBURN OR
2023-08-02 971-668-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 RAINIER OR
2023-07-28 971-397-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTH PL OR
2023-07-28 971-397-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTH PL OR
2023-07-28 971-403-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ASTORIA OR
2023-07-28 971-403-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ASTORIA OR
2023-07-25 971-248-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VERNONIA OR
2023-07-25 971-372-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J STAYTON OR
2023-07-25 971-439-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-439-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-25 971-454-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-07-12 971-387-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2023-07-12 971-424-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2023-07-12 971-424-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2023-07-12 971-424-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2023-07-12 971-626-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2023-07-12 971-626-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2023-07-12 971-626-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2023-07-12 971-626-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2023-07-12 971-626-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2023-07-12 971-746-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2023-07-12 971-746-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2023-07-12 971-746-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2023-07-12 971-746-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2023-07-12 971-842-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2023-07-12 971-842-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2023-07-12 971-842-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2023-07-12 971-842-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2023-07-12 971-842-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2023-07-11 971-446-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-07-11 971-446-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-07-11 971-446-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-07-11 971-453-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-07-11 971-453-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2023-07-11 971-746-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MCMINNVL 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.