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
2016-03-16 971-280-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-280-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-347-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2016-03-16 971-901-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2016-03-15 971-328-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E RAINIER OR
2016-03-15 971-328-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E RAINIER OR
2016-03-08 971-370-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 SILVERTON OR
2016-03-07 971-315-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F AUMSVLTRNR OR
2016-03-04 971-719-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2016-03-01 971-280-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-280-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-280-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-280-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-280-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-386-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-03-01 971-386-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-02-26 971-386-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2016-02-23 971-813-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2016-02-22 971-247-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2016-02-22 971-247-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2016-02-22 971-772-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E WOODBURN OR
2016-02-22 971-772-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E WOODBURN OR
2016-02-18 971-386-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2016-02-18 971-386-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2016-02-18 971-612-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-02-18 971-612-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-02-17 971-318-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E AMITY OR
2016-02-17 971-318-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E AMITY OR
2016-02-17 971-606-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2016-02-17 971-606-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2016-02-11 971-316-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F GRAND IS OR
2016-02-11 971-612-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-02-11 971-612-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E DALLAS OR
2016-02-09 971-606-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASTORIA OR
2016-02-04 971-286-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 WARRENTON OR
2016-01-29 971-206-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2016-01-29 971-236-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2016-01-15 971-517-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2016-01-15 971-517-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2016-01-15 971-727-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2016-01-15 971-772-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2016-01-12 971-386-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-01-12 971-386-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-01-12 971-386-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2016-01-12 971-386-9XXX 9000–9999Assigned 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.