Sh4mefulIP Address: 131.72.37.65
This page shows DMARC authentication failure data for this IP address. Learn more about this data.
Geolocation Information
- Country:
- BR Brazil
- Region:
- Rio de Janeiro
- City:
- Rio de Janeiro
- Coordinates:
- -22.9201, -43.0811
WHOIS Information
- Network Name:
- JOSE CARLOS GONZAGA CARDOSO - ME
- CIDR:
131.72.36.0/22- Owner:
- JOSE CARLOS GONZAGA CARDOSO - ME
- Reverse DNS:
-
65.37.gonzagatelecom.com.br
Last updated: 4/1/2026
Analysis
This IP was observed on a single date: February 12, 2025. It has been associated with 1 failed authentication event affecting 7 messages — a single isolated event. The IP belongs to JOSE CARLOS GONZAGA CARDOSO - ME, a network with activity associated with Brazil. One other IP in the same /24 subnet (131.72.37.*) also appears in this dataset.
External Reputation Lookups
Look up this IP in external threat intelligence and reputation databases (opens in new tab):
Nearby IPs
Other IPs in the 131.72.37.0/24 range observed failing DMARC:
131.72.37.74 (1 failure)