Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection

Network: BRISANET SERVICOS DE TELECOMUNICACOES S.A

This page shows DMARC authentication failures originating from the BRISANET SERVICOS DE TELECOMUNICACOES S.A network. Learn more about this data.

Network Information
WHOIS Owner:
BRISANET SERVICOS DE TELECOMUNICACOES S.A
Countries:
BR
Unique IPs:
4
CIDR:
177.37.128.0/17

Analysis

This network has contributed 4 unique IP addresses across 4 failed authentication events, accounting for 17 messages. Activity spans from April 4, 2025 to June 13, 2025, with peak volume in April 2025 (3 events). The top countries by failure volume are Brazil (100%). The most active source IPs from this network include 177.37.132.48 (1 failure), 177.37.170.4 (1 failure), 177.37.177.165 (1 failure). Failures from BRISANET SERVICOS DE TELECOMUNICACOES S.A are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-4 of 4 failures, affecting 17 messages
Countries