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
2018-03-13 971-287-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2018-03-09 971-292-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRESHAM OR
2018-03-02 971-293-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRESHAM OR
2018-03-02 971-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-03-02 971-666-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-03-02 971-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-03-02 971-754-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-03-02 971-978-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-03-02 971-978-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-28 971-377-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2018-02-28 971-377-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2018-02-26 971-297-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2018-02-26 971-420-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-26 971-420-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-26 971-420-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-26 971-420-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-26 971-420-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2018-02-16 971-289-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F DALLAS OR
2018-02-16 971-757-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F ST HELENS OR
2018-02-06 971-412-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2018-02-01 971-377-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2018-01-30 971-324-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEHALEM OR
2018-01-22 971-377-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CLACKAMAS OR
2017-12-29 971-314-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E VERNONIA OR
2017-12-29 971-412-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2017-12-27 971-298-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2017-12-12 971-206-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2017-12-12 971-297-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2017-12-12 971-297-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2017-11-28 971-420-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2017-11-28 971-718-8XXX 8000–8999Assigned METROPCS, INC. 5562 SALEM OR
2017-11-21 971-318-8XXX 8000–8999Assigned ASTOUND BROADBAND, LLC - OR 936F AMITY OR
2017-11-20 971-287-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2017-11-14 971-287-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2017-11-08 971-257-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - OR 936F CLOVERDALE OR
2017-11-08 971-286-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - OR 936F WARRENTON OR
2017-11-08 971-296-5XXX 5000–5999Assigned ASTOUND BROADBAND, LLC - OR 936F WESTPORT OR
2017-11-08 971-601-1XXX 1000–1999Assigned ASTOUND BROADBAND, LLC - OR 936F SEASIDE OR
2017-11-07 971-278-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CLATSKANIE OR
2017-11-07 971-291-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-291-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-07 971-420-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2017-11-03 971-328-6XXX 6000–6999Assigned ASTOUND BROADBAND, LLC - OR 936F RAINIER 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.