Network: Prefeitura Municipal de Alfenas

This page shows DMARC authentication failures originating from the Prefeitura Municipal de Alfenas network. Learn more about this data.

Network Information

WHOIS Owner:: Prefeitura Municipal de Alfenas
Countries:: BR

Unique IPs:: 1

CIDR:: 187.87.80.0/20

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 August 6, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 187.87.80.14 (1 failure). A single IP dominates activity from Prefeitura Municipal de Alfenas, 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
8/6/2026	187.87.80.14	BR	4

Countries

Brazil