NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-07-17 503-457-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E TILLAMOOK OR
2020-07-17 503-483-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-07-17 503-483-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-07-17 503-755-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E JEWELL OR
2020-07-17 503-809-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-07-16 503-487-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2020-07-16 503-487-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2020-07-16 503-713-2XXX 2000–2999Assigned METROPCS, INC. 5562 BEAVERTON OR
2020-07-16 503-832-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-07-16 503-832-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-07-16 503-832-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-07-01 503-461-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-07-01 503-461-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-07-01 503-461-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-07-01 503-461-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-07-01 503-461-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-06-25 503-782-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PACIFIC CY OR
2020-06-25 503-782-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PACIFIC CY OR
2020-06-25 503-832-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2020-06-25 503-832-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2020-05-06 503-433-6XXX 6000–6999Assigned TELNYX LLC 073H NORTH PL OR
2020-04-15 503-922-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2020-04-08 503-592-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANBYNEEDY OR
2020-04-02 503-461-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-04-02 503-461-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2020-04-02 503-647-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-04-02 503-647-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-03-31 503-483-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-02-27 503-979-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STAYTON OR
2020-02-18 503-979-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 STAYTON OR
2020-02-17 503-303-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2020-01-23 503-300-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E BAY CITY OR
2020-01-23 503-300-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E BAY CITY OR
2020-01-23 503-483-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-01-15 503-922-5XXX 5000–5999Assigned METROPCS, INC. 5562 PORTLAND OR
2019-12-18 503-270-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2019-10-10 503-300-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E BAY CITY OR
2019-10-10 503-300-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BAY CITY OR
2019-10-10 503-386-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E KNAPPA OR
2019-10-10 503-447-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2019-10-10 503-447-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2019-10-10 503-461-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2019-10-10 503-461-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E GRANDRONDE OR
2019-10-10 503-714-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E DAYTON OR
2019-10-10 503-755-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E JEWELL OR
2019-10-10 503-755-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E JEWELL OR
2019-10-10 503-782-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2019-10-10 503-782-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2019-10-10 503-852-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E CARLTON OR
2019-10-10 503-852-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E CARLTON OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.