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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-10-28 503-487-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWBERG OR
2021-10-12 503-218-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-07-06 503-698-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STFRD-SNDY OR
2021-06-28 503-376-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MCMINNVL OR
2021-06-03 503-783-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 STFRD-SNDY OR
2021-05-20 503-498-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2021-04-22 503-404-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-04-22 503-454-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-04-22 503-454-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-04-22 503-783-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-03-05 503-486-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STFRD-SNDY OR
2021-02-05 503-447-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2021-02-05 503-647-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-12-29 503-710-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J WOODBURN OR
2020-11-24 503-483-9XXX 9000–9999Assigned NUSO, LLC 478J PACIFIC CY OR
2020-11-23 503-822-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SHERWOOD OR
2020-10-12 503-386-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E KNAPPA OR
2020-10-12 503-436-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E CANNON BCH OR
2020-10-12 503-486-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-10-12 503-486-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-10-12 503-662-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E YAMHILL OR
2020-10-12 503-664-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E BEAVER OR
2020-10-12 503-739-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E SEASIDE OR
2020-10-12 503-782-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-10-12 503-782-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-10-12 503-782-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2020-10-12 503-809-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-10-12 503-809-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2020-10-12 503-822-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E SHERWOOD OR
2020-10-12 503-836-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ASTORIA OR
2020-10-12 503-868-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E GRAND IS OR
2020-10-12 503-966-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E WESTPORT OR
2020-10-12 503-987-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E SCAPPOOSE OR
2020-10-01 503-563-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-10-01 503-563-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2020-09-20 503-447-2XXX 2000–2999Assigned TELNYX LLC 073H NORTH PL OR
2020-09-10 503-218-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J STFRD-SNDY OR
2020-09-10 503-218-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J STFRD-SNDY OR
2020-09-10 503-342-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2020-09-10 503-342-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2020-09-10 503-343-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2020-09-08 503-573-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRESHAM OR
2020-09-04 503-713-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2020-08-26 503-344-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CLACKAMAS OR
2020-08-04 503-922-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2020-08-03 503-800-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GERVAIS OR
2020-07-24 503-344-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2020-07-24 503-344-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2020-07-23 503-713-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2020-07-17 503-376-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E MCMINNVL 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.