NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 503
ONVOY, LLC - OR 4
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 1
BANDWIDTH.COM CLEC, LLC - OR 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
2011-08-17 503-433-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2011-08-17 503-433-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2011-08-17 503-433-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2011-08-17 503-447-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2011-08-17 503-479-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2011-08-17 503-506-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2011-08-03 503-207-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-08-03 503-716-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-08-03 503-728-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CLATSKANIE OR
2011-08-01 503-902-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOODBURN OR
2011-07-20 503-573-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GRESHAM OR
2011-07-20 503-912-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F GRESHAM OR
2011-07-20 503-987-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SCAPPOOSE OR
2011-07-19 503-303-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2011-07-19 503-468-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASTORIA OR
2011-07-19 503-825-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SHERWOOD OR
2011-07-13 503-509-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 STAYTON OR
2011-07-06 503-451-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CLACKAMAS OR
2011-07-06 503-726-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-07-06 503-726-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-07-06 503-726-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-06-24 503-987-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SCAPPOOSE OR
2011-06-14 503-776-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J AURORA OR
2011-06-08 503-430-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-06-08 503-606-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2011-06-08 503-707-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-06-08 503-902-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOODBURN OR
2011-05-05 503-447-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2011-05-05 503-498-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2011-05-05 503-498-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2011-05-05 503-718-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-05-05 503-718-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-05-05 503-739-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEASIDE OR
2011-05-05 503-825-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SHERWOOD OR
2011-05-05 503-836-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASTORIA OR
2011-05-05 503-974-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2011-05-05 503-974-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2011-05-05 503-974-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2011-05-05 503-974-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2011-05-03 503-410-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ST HELENS OR
2011-04-20 503-207-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2011-04-08 503-430-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2011-04-06 503-836-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASTORIA OR
2011-03-25 503-683-4XXX 4000–4999Assigned QWEST CORPORATION 9638 CLACKAMAS OR
2011-03-25 503-683-5XXX 5000–5999Assigned QWEST CORPORATION 9638 CLACKAMAS OR
2011-03-25 503-683-6XXX 6000–6999Assigned QWEST CORPORATION 9638 CLACKAMAS OR
2011-03-25 503-836-4XXX 4000–4999Assigned QWEST CORPORATION 9638 ASTORIA OR
2011-03-08 503-822-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SHERWOOD OR
2011-03-07 503-395-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F RAINIER OR
2011-03-07 503-662-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F YAMHILL 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.