NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 541
ONVOY, LLC - OR 2
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
2013-11-20 541-816-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2013-11-19 541-303-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F HERMISTON OR
2013-11-19 541-565-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORO OR
2013-11-14 541-354-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ODELL OR
2013-11-14 541-364-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINCOLN CY OR
2013-11-14 541-380-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOOD RIVER OR
2013-11-14 541-394-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRASS VLY OR
2013-11-14 541-402-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PARKDALE OR
2013-11-14 541-442-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WASCO OR
2013-11-14 541-454-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARLINGTON OR
2013-11-14 541-578-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOSIER OR
2013-11-14 541-739-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RUFUS OR
2013-11-14 541-816-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2013-11-14 541-816-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2013-11-14 541-861-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MILTONFWTR OR
2013-11-06 541-288-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 THE DALLES OR
2013-11-06 541-405-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEBANON OR
2013-11-06 541-538-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITE CITY OR
2013-11-06 541-808-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COOS BAY OR
2013-11-04 541-699-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F REDMOND OR
2013-10-30 541-427-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J UKIAH OR
2013-10-30 541-634-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPRAY OR
2013-10-30 541-695-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAMIC OR
2013-10-30 541-985-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TYGHVALLEY OR
2013-10-28 541-303-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HERMISTON OR
2013-10-28 541-500-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MEDFORD OR
2013-10-28 541-532-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PILOT ROCK OR
2013-10-28 541-576-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SILVERLAKE OR
2013-10-28 541-721-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONUMENT OR
2013-10-28 541-722-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SO HARNEY OR
2013-10-28 541-748-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PAULINA OR
2013-10-28 541-781-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO HARNEY OR
2013-10-28 541-794-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO POWDER OR
2013-10-28 541-834-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PINE GROVE OR
2013-10-28 541-873-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SENECA OR
2013-10-25 541-256-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HEPPNER OR
2013-10-25 541-376-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ECHO OR
2013-10-25 541-395-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAUPIN OR
2013-10-25 541-413-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BURNS OR
2013-10-25 541-422-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IONE OR
2013-10-25 541-470-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DURKEE OR
2013-10-25 541-627-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MITCHELL OR
2013-10-25 541-628-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JOHN DAY OR
2013-10-25 541-651-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOSSIL OR
2013-10-25 541-697-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HUNTINGTON OR
2013-10-25 541-765-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEPOE BAY OR
2013-10-25 541-931-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GILCHRIST OR
2013-10-25 541-939-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONG CREEK OR
2013-10-25 541-940-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEXINGTON OR
2013-10-25 541-945-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BOARDMAN 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.