Network: OPTUSINTERNET-AU

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

Network Information

WHOIS Owner:: ORG-OIPL5-AP
Countries:: AU

Unique IPs:: 1

CIDR:: 58.105.176.0/20

Analysis

This network has contributed 1 unique IP address across 4 failed authentication events, accounting for 6 messages. Activity from this network spans from December 31, 2025 to January 13, 2026. Activity from OPTUSINTERNET-AU has been observed from Australia.

Failures Detected from this Network

Showing 1-4 of 4 (failures, affecting 6 messages)

Show Confoundersⓘ

Date ▼	Source IP	Country	Messages
1/13/2026	58.105.183.243	AU	1
1/12/2026	58.105.183.243	AU	2
1/8/2026	58.105.183.243	AU	1
12/31/2025	58.105.183.243	AU	2

Countries

Australia