NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 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
2017-02-07 541-640-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2017-02-06 541-200-3XXX 3000–3999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C MEDFORD OR
2017-01-31 541-800-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STANFIELD OR
2016-12-29 541-600-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2016-12-19 541-287-5XXX 5000–5999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C CAVE JCT OR
2016-12-16 541-799-8XXX 8000–8999Assigned METROPCS, INC. 5562 EUGENE OR
2016-12-06 541-250-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CORVALLIS OR
2016-12-06 541-258-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 LEBANON OR
2016-12-06 541-675-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E MADRAS OR
2016-11-30 541-841-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2016-11-28 541-406-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BAKER OR
2016-11-28 541-843-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E JACKSONVL OR
2016-11-28 541-919-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E ATHENA OR
2016-11-21 541-625-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASHLAND OR
2016-11-11 541-363-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2016-10-18 541-452-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CORVALLIS OR
2016-10-13 541-764-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DEPOE BAY OR
2016-09-30 541-638-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BLACKBUTTE OR
2016-09-30 541-903-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PRINEVILLE OR
2016-09-30 541-904-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SISTERS OR
2016-09-20 541-780-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-09-20 541-780-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-09-14 541-780-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2016-09-13 541-400-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HOOD RIVER OR
2016-09-07 541-366-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OR 6349 PORTORFORD OR
2016-09-02 541-819-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWPORT OR
2016-08-29 541-532-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PILOT ROCK OR
2016-08-26 541-714-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CORVALLIS OR
2016-08-24 541-268-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAPLETON OR
2016-08-17 541-901-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F FLORENCE OR
2016-08-15 541-841-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MEDFORD OR
2016-08-08 541-581-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOWELL OR
2016-08-08 541-650-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-08-08 541-650-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-08-08 541-650-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-08-08 541-799-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-07-21 541-640-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2016-07-19 541-527-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2016-07-15 541-452-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CORVALLIS OR
2016-07-13 541-900-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROSEBURG OR
2016-07-05 541-640-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEND OR
2016-06-28 541-630-6XXX 6000–6999Assigned METROPCS, INC. 5562 CENTRAL PT OR
2016-06-27 541-650-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2016-06-27 541-650-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2016-06-27 541-797-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BEND OR
2016-06-24 541-209-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JEFFERSON OR
2016-06-24 541-529-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 OAKLAND OR
2016-06-24 541-919-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ATHENA OR
2016-06-23 541-666-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY OR
2016-06-23 541-666-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY 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.