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
2019-03-05 971-287-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2019-02-28 971-348-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2019-02-28 971-348-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2019-02-28 971-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2019-02-25 971-297-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2019-02-25 971-297-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2019-02-14 971-286-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 WARRENTON OR
2019-02-14 971-316-6XXX 6000–6999Assigned METROPCS, INC. 5562 GRAND IS OR
2019-02-14 971-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SALEM OR
2019-02-12 971-900-4XXX 4000–4999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SALEM OR
2019-01-25 971-346-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2019-01-21 971-988-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ASTORIA OR
2019-01-21 971-999-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 YAMHILL OR
2019-01-14 971-979-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SHERWOOD OR
2019-01-11 971-335-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-01-09 971-297-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2019-01-09 971-297-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2018-12-17 971-332-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2018-12-05 971-346-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2018-12-05 971-346-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2018-12-03 971-293-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRESHAM OR
2018-11-27 971-315-6XXX 6000–6999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F AUMSVLTRNR OR
2018-11-27 971-757-3XXX 3000–3999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F ST HELENS OR
2018-11-20 971-287-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F MCMINNVL OR
2018-11-20 971-309-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 WILLAMINA OR
2018-11-20 971-326-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SEASIDE OR
2018-11-20 971-345-0XXX 0000–0999Assigned AIRESPRING, INC. 996H SALEM OR
2018-11-20 971-432-1XXX 1000–1999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F WOODBURN OR
2018-11-20 971-802-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SHERIDAN OR
2018-11-07 971-257-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E CLOVERDALE OR
2018-11-07 971-265-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E GARIBALDI OR
2018-11-07 971-306-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E ROCKAWAY OR
2018-11-07 971-309-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E WILLAMINA OR
2018-11-07 971-341-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E TILLAMOOK OR
2018-11-07 971-399-1XXX 1000–1999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F FALLS CITY OR
2018-11-07 971-802-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SHERIDAN OR
2018-11-02 971-341-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-11-02 971-341-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-11-02 971-341-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-11-02 971-342-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F CANNON BCH OR
2018-10-30 971-326-6XXX 6000–6999Assigned INVOXIO INCORPORATED 158H SEASIDE OR
2018-10-25 971-899-9XXX 9000–9999Assigned INVOXIO INCORPORATED 158H RAINIER OR
2018-10-25 971-988-8XXX 8000–8999Assigned INVOXIO INCORPORATED 158H ASTORIA OR
2018-10-23 971-247-0XXX 0000–0999Assigned INVOXIO INCORPORATED 158H NORTH PL OR
2018-10-23 971-432-2XXX 2000–2999Assigned INVOXIO INCORPORATED 158H WOODBURN OR
2018-10-19 971-335-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLACKAMAS OR
2018-10-16 971-355-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM OR
2018-10-16 971-355-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM OR
2018-10-16 971-355-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM OR
2018-10-16 971-355-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM 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.