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
2015-09-29 971-930-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2015-09-28 971-316-9XXX 9000–9999Assigned METROPCS, INC. 5562 GRAND IS OR
2015-09-23 971-727-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2015-09-16 971-724-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2015-09-15 971-336-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-09-15 971-336-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-09-15 971-336-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-09-15 971-336-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-09-15 971-719-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2015-09-15 971-719-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2015-09-08 971-813-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ST HELENS OR
2015-08-25 971-274-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRESHAM OR
2015-08-24 971-901-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2015-08-24 971-901-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2015-08-11 971-413-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2015-08-04 971-336-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-08-04 971-336-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-08-04 971-336-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-08-04 971-336-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-07-30 971-280-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2015-07-29 971-813-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ST HELENS OR
2015-07-24 971-280-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2015-07-24 971-352-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2015-07-24 971-352-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2015-07-23 971-713-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BEAVERTON OR
2015-07-20 971-813-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ST HELENS OR
2015-07-17 971-901-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MCMINNVL OR
2015-07-14 971-265-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 GARIBALDI OR
2015-07-01 971-280-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-07-01 971-330-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2015-07-01 971-713-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2015-07-01 971-713-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2015-06-30 971-203-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ST HELENS OR
2015-06-29 971-352-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-23 971-808-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2015-06-18 971-470-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-18 971-470-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-18 971-470-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-18 971-470-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-18 971-470-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-18 971-808-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-18 971-808-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-18 971-808-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-11 971-334-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-11 971-808-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2015-06-08 971-719-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2015-06-04 971-979-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SHERWOOD OR
2015-06-03 971-470-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-03 971-470-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2015-06-03 971-470-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON 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.