Network: OPTUSCOM-AU

This page shows DMARC authentication failures originating from the OPTUSCOM-AU network. Learn more about this data.

Network Information

WHOIS Owner:: Singtel Optus Pty Ltd
Countries:: AU

Unique IPs:: 1

CIDR:: 1.44.0.0/16

Analysis

This network has contributed 1 unique IP address across 2 failed authentication events, accounting for 8 messages. Activity from this network spans from September 18, 2025 to September 19, 2025. Activity from OPTUSCOM-AU has been observed from Australia.

Failures Detected from this Network

Showing 1-2 of 2 (failures, affecting 8 messages)

Show Confoundersⓘ

Date ▲	Source IP	Country	Messages
9/18/2025	1.44.148.158	AU	4
9/19/2025	1.44.148.158	AU	4

Countries

Australia