NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

28 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 458
ONVOY, LLC - OR 15
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 6
BANDWIDTH.COM CLEC, LLC - OR 3
AHOI LLC 2
NEW CINGULAR WIRELESS PCS, 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
2023-02-02 458-505-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E SHADY COVE OR
2023-02-01 458-296-1XXX 1000–1999Assigned NUSO, LLC 732J EUGENE OR
2023-01-30 458-263-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SILVERLAKE OR
2023-01-30 458-290-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E KLAMATHFLS OR
2023-01-30 458-294-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MARCOLA OR
2023-01-30 458-295-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 JEFFERSON OR
2023-01-30 458-687-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MORO OR
2023-01-30 458-723-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BURNS OR
2023-01-30 458-742-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 NO HARNEY OR
2023-01-30 458-783-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 DEPOE BAY OR
2023-01-30 458-837-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MITCHELL OR
2023-01-30 458-846-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SO HARNEY OR
2023-01-30 458-987-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GILCHRIST OR
2023-01-27 458-241-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ECHO OR
2023-01-27 458-248-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 LOWELL OR
2023-01-27 458-249-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CHILOQUIN OR
2023-01-27 458-252-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 OREGONSLOP OR
2023-01-27 458-259-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BROWNSVL OR
2023-01-27 458-269-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 DRAIN OR
2023-01-27 458-277-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NEWPORT OR
2023-01-27 458-284-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 HARRISBURG OR
2023-01-27 458-293-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 STANFIELD OR
2023-01-27 458-433-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 VALE OR
2023-01-27 458-451-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BUTTEFALLS OR
2023-01-27 458-459-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BLUE RIVER OR
2023-01-27 458-505-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SHADY COVE OR
2023-01-27 458-624-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 NO POWDER OR
2023-01-27 458-625-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BONANZA OR
2023-01-27 458-632-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 IONE OR
2023-01-27 458-675-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 OAKRIDGE OR
2023-01-27 458-726-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MONUMENT OR
2023-01-27 458-787-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 HEPPNER OR
2023-01-27 458-886-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BLY OR
2023-01-27 458-900-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ATHENA OR
2023-01-19 458-488-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MEDFORD OR
2023-01-12 458-264-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 JUNCTIONCY OR
2023-01-12 458-588-0XXX 0000–0999Assigned TELNYX LLC 073H THE DALLES OR
2023-01-12 458-999-5XXX 5000–5999Assigned TELNYX LLC 073H UMATILLA OR
2023-01-11 458-588-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 THE DALLES OR
2023-01-05 458-488-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E MEDFORD OR
2022-12-30 458-287-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PRINEVILLE OR
2022-12-30 458-658-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2022-12-22 458-277-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWPORT OR
2022-12-07 458-901-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COOS BAY OR
2022-12-05 458-291-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E GRANTSPASS OR
2022-12-01 458-451-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E BUTTEFALLS OR
2022-12-01 458-451-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BUTTEFALLS OR
2022-12-01 458-459-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E BLUE RIVER OR
2022-12-01 458-854-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2022-11-23 458-291-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANTSPASS 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.