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
2013-10-15 971-251-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F RAINIER OR
2013-10-15 971-304-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SALEM OR
2013-10-15 971-307-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F FALLS CITY OR
2013-10-15 971-308-1XXX 1000–1999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F CANNON BCH OR
2013-10-11 971-254-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2013-10-08 971-312-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2013-10-04 971-246-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-10-02 971-312-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-09-25 971-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2013-09-25 971-777-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2013-09-25 971-777-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2013-09-25 971-777-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2013-09-19 971-304-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 SALEM OR
2013-09-19 971-703-1XXX 1000–1999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PORTLAND OR
2013-09-19 971-703-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PORTLAND OR
2013-09-17 971-804-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-17 971-804-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-17 971-804-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-17 971-804-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-17 971-804-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-17 971-804-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-16 971-317-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2013-09-11 971-599-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SALEM OR
2013-09-06 971-303-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-09-06 971-303-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-09-06 971-303-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-09-06 971-303-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-09-06 971-373-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2013-08-27 971-473-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-27 971-473-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2013-08-26 971-249-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2013-08-19 971-203-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ST HELENS OR
2013-08-19 971-259-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E AMITY OR
2013-08-19 971-261-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E MCMINNVL OR
2013-08-19 971-304-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2013-08-19 971-304-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2013-08-19 971-308-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CANNON BCH OR
2013-08-19 971-343-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E SILVERTON OR
2013-08-16 971-312-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-08-08 971-801-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-07-30 971-343-9XXX 9000–9999Assigned SCS COMMUNICATIONS AND SECURITY, INC. - OR 8629 SILVERTON OR
2013-07-22 971-224-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STFRD-SNDY 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.