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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-12-21 971-477-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-477-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-477-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-477-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-478-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-478-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-21 971-478-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2023-12-14 971-771-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OR
2023-12-14 971-771-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAYTON OR
2023-12-12 971-436-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GRESHAM OR
2023-12-12 971-458-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2023-12-07 971-464-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BEAVERTON OR
2023-12-07 971-477-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BEAVERTON OR
2023-12-07 971-477-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BEAVERTON OR
2023-12-07 971-477-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BEAVERTON OR
2023-12-07 971-766-5XXX 5000–5999Assigned NUSO, LLC 478J PACIFIC CY OR
2023-12-07 971-766-7XXX 7000–7999Assigned NUSO, LLC 478J PACIFIC CY OR
2023-12-05 971-459-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-459-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-459-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-476-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-476-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-476-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-05 971-476-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-04 971-326-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEASIDE OR
2023-12-04 971-472-0XXX 0000–0999Assigned FIVE9, INC. 598J PORTLAND OR
2023-12-04 971-474-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2023-12-04 971-474-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2023-12-04 971-475-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEASIDE OR
2023-12-01 971-243-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2023-12-01 971-243-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2023-11-29 971-453-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2023-10-26 971-455-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WOODBURN OR
2023-10-25 971-359-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BEAVER CRK OR
2023-10-24 971-243-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWBERG OR
2023-10-24 971-372-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 STAYTON OR
2023-10-18 971-469-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-10-18 971-469-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-10-18 971-469-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-10-18 971-469-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2023-10-16 971-360-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-10-16 971-360-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-10-16 971-360-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E PORTLAND OR
2023-10-10 971-468-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DALLAS OR
2023-10-10 971-468-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DALLAS OR
2023-10-09 971-467-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 PORTLAND OR
2023-10-09 971-467-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 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.