Network: Downup Telecomunicacoes e servico LTDA

This page shows DMARC authentication failures originating from the Downup Telecomunicacoes e servico LTDA network. Learn more about this data.

Network Information

WHOIS Owner:: Downup Telecomunicacoes e servico LTDA
Countries:: BR

Unique IPs:: 1

CIDR:: 177.66.200.0/22

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 1 message. Activity from this network was observed on June 16, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 177.66.202.210 (1 failure). A single IP dominates activity from Downup Telecomunicacoes e servico LTDA, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network

Showing 1-1 of 1 failures, affecting 1 message

Show Confoundersⓘ

Date ▼	Source IP	Country	Messages
6/16/2026	177.66.202.210	BR	1

Countries

Brazil