Network: CENTURYLINK-LEGACY-QWEST-INET-12

This page shows DMARC authentication failures originating from the CENTURYLINK-LEGACY-QWEST-INET-12 network. Learn more about this data.

Network Information

Owner:: Lumen
Org ID:: CCL-534
Address:: 100 CENTURYLINK DR, Monroe, LA 71201
Countries:: US

Unique IPs:: 3

CIDR:: 66.77.0.0/16

Analysis

This network has contributed 3 unique IP addresses across 13 failed authentication events, accounting for 18 messages. Activity from this network spans from September 13, 2024 to June 27, 2025. Activity from CENTURYLINK-LEGACY-QWEST-INET-12 (Lumen), a commercial ISP, has been observed from United States.

Failures Detected from this Network

Showing 1-13 of 13 (failures, affecting 18 messages)

Show Confoundersⓘ

Date ▲	Source IP	Country	Messages
9/13/2024	66.77.129.71	US	1
9/13/2024	66.77.129.73	US	3
9/18/2024	66.77.129.72	US	1
9/18/2024	66.77.129.73	US	1
9/20/2024	66.77.129.71	US	3
9/27/2024	66.77.129.73	US	1
11/12/2024	66.77.129.71	US	1
11/12/2024	66.77.129.73	US	1
11/20/2024	66.77.129.72	US	1
11/20/2024	66.77.129.73	US	2
12/5/2024	66.77.129.72	US	1
6/27/2025	66.77.129.72	US	1
6/27/2025	66.77.129.73	US	1

Countries

United States