Network: FiberNet Telecomunicacoes

This page shows DMARC authentication failures originating from the FiberNet Telecomunicacoes network. Learn more about this data.

Network Information

WHOIS Owner:: FiberNet Telecomunicacoes
Countries:: BR

Unique IPs:: 1

CIDR:: 138.219.108.0/22

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 4 messages. Activity from this network was observed on April 11, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 138.219.108.147 (1 failure). A single IP dominates activity from FiberNet Telecomunicacoes, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network

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

Show Confoundersⓘ

Date ▲	Source IP	Country	Messages
4/11/2026	138.219.108.147	BR	4

Countries

Brazil