Network: Claro NXT Telecomunicacoes Ltda

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

Network Information

WHOIS Owner:: Claro NXT Telecomunicacoes Ltda
Countries:: BR

Unique IPs:: 15

CIDRs:: 177.100.0.0/16, 177.192.0.0/14, (more)

Analysis

This network has contributed 15 unique IP addresses across 15 failed authentication events, accounting for 48 messages. Activity from this network spans from November 16, 2024 to February 14, 2026. Activity from Claro NXT Telecomunicacoes Ltda has been observed from Brazil.

Failures Detected from this Network

Showing 1-15 of 15 (failures, affecting 48 messages)

Show Confoundersⓘ

Date ▼	Source IP	Country	Messages
2/14/2026	179.157.216.99	BR	2
8/27/2025	186.221.66.13	BR	4
7/7/2025	177.192.210.37	BR	1
7/7/2025	189.6.14.200	BR	1
6/28/2025	187.181.140.218	BR	4
6/23/2025	189.6.215.199	BR	1
6/16/2025	177.100.125.105	BR	3
6/16/2025	177.194.224.199	BR	4
5/9/2025	187.36.123.154	BR	4
5/9/2025	191.177.137.18	BR	4
4/19/2025	186.205.178.46	BR	4
4/19/2025	187.255.97.16	BR	8
2/10/2025	186.220.141.96	BR	3
11/22/2024	189.121.203.99	BR	1
11/16/2024	179.215.193.32	BR	4

Countries

Brazil