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
2022-05-27 971-430-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-27 971-430-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-27 971-430-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-26 971-421-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-26 971-429-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-26 971-429-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-05-25 971-428-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-05-25 971-428-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-05-25 971-428-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-05-13 971-671-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KNAPPA OR
2022-05-13 971-825-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2022-05-13 971-825-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2022-05-13 971-825-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2022-05-06 971-977-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 TILLAMOOK OR
2022-05-05 971-342-8XXX 8000–8999Assigned TELNYX LLC 073H CANNON BCH OR
2022-05-05 971-376-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CLATSKANIE OR
2022-05-05 971-746-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2022-05-05 971-842-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ST HELENS OR
2022-05-04 971-825-1XXX 1000–1999Assigned TELNYX LLC 073H CLACKAMAS OR
2022-04-27 971-825-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CLACKAMAS OR
2022-04-12 971-395-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEASIDE OR
2022-04-12 971-395-2XXX 2000–2999Assigned METROPCS, INC. 5562 SEASIDE OR
2022-04-12 971-414-8XXX 8000–8999Assigned METROPCS, INC. 5562 STFRD-SNDY OR
2022-04-12 971-571-0XXX 0000–0999Assigned METROPCS, INC. 5562 GRESHAM OR
2022-04-12 971-825-0XXX 0000–0999Assigned METROPCS, INC. 5562 CLACKAMAS OR
2022-04-05 971-429-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2022-04-04 971-359-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEAVER CRK OR
2022-04-01 971-429-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-04-01 971-429-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-04-01 971-429-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-04-01 971-429-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-04-01 971-429-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-04-01 971-429-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2022-03-29 971-825-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J CLACKAMAS OR
2022-03-25 971-428-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2022-03-23 971-396-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CLACKAMAS OR
2022-03-16 971-395-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SEASIDE OR
2022-03-09 971-746-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J MCMINNVL OR
2022-03-09 971-818-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J AURORA OR
2022-03-08 971-428-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-03-08 971-626-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J SHERWOOD OR
2022-03-07 971-368-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUMSVLTRNR OR
2022-03-07 971-374-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2022-03-07 971-427-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2022-03-07 971-427-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 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.