NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

28 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 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
2023-10-24 458-314-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 OAKLAND OR
2023-10-18 458-544-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2023-10-10 458-278-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2023-10-10 458-309-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2023-10-10 458-309-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2023-09-27 458-274-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E CENTRAL PT OR
2023-09-27 458-274-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E CENTRAL PT OR
2023-09-27 458-274-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E CENTRAL PT OR
2023-09-27 458-274-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E CENTRAL PT OR
2023-09-27 458-274-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E CENTRAL PT OR
2023-09-27 458-282-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E COTTAGEGRV OR
2023-09-27 458-282-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E COTTAGEGRV OR
2023-09-27 458-282-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E COTTAGEGRV OR
2023-09-27 458-282-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E COTTAGEGRV OR
2023-09-27 458-282-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E COTTAGEGRV OR
2023-09-27 458-588-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2023-09-27 458-588-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2023-09-27 458-588-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2023-09-27 458-588-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2023-09-27 458-588-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2023-09-27 458-877-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E LA GRANDE OR
2023-09-27 458-877-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E LA GRANDE OR
2023-09-27 458-877-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E LA GRANDE OR
2023-09-27 458-877-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E LA GRANDE OR
2023-09-27 458-877-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E LA GRANDE OR
2023-09-26 458-544-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 EUGENE OR
2023-09-25 458-488-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MEDFORD OR
2023-09-25 458-544-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-544-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-544-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-544-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-544-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-867-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-895-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-895-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-895-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-895-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-895-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2023-09-25 458-910-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE 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.