177.131.178.136📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Subject: 177.131.178.136/32

Classification: Residential Endpoint - Low Risk

Date: 2026-07-24

Prepared For: SOC Operations Team

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## Executive Summary

IP 177.131.178.136 is a low-risk residential endpoint located in Nova Friburgo, Rio de Janeiro, Brazil. The address belongs to GIGA MAIS FIBRA TELECOMUNICACOES S.A. (ASN 28210) and shows no malicious indicators, threat associations, or abuse patterns. No firewall blocking or security actions are recommended at this time.

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## Risk Assessment

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## Ownership & Network Details

• Organization: GIGA MAIS FIBRA TELECOMUNICACOES S.A.
• ASN: 28210
• CIDR Block: 177.131.160.0/19
• RIR: LACNIC
• Netname: 179753
• Registration: LACNIC Region

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## Geolocation

• Country: Brazil (BR)
• Region: Rio de Janeiro (RJ)
• City: Nova Friburgo
• Timezone: America/Sao_Paulo
• Location Confidence: 52%
• Accuracy Radius: 2500 km

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## Network Classification

• Infrastructure Type: Residential
• Connection Type: Residential Endpoint
• Cloud/CDN/VPN/Proxy: No
• Tor Exit Node: No
• Hosting Provider: No
• Mobile Carrier: No

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## DNS Analysis

• PTR Record: 177-131-178-136.static.sumicity.net.br
• Forward Resolution: Confirmed (1 hostname)
• Hosted Domains: None
• Email Auth: SPF/DMARC records not configured
• DNSSEC: Valid

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## Service Exposure

• Open Ports: None detected
• TLS Certificates: None
• HTTP Banner: None
• Web Services: Not observed

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## Control Plane & Routing

• Origin ASN: 28210
• BGP Prefix: 177.131.160.0/19
• Route Stability: Unstable
• DNSSEC Validation: Valid
• Operator Score: 0.2609 (Basic)
• DNSBL Listings: 0
• Traceroute Hops: 30 (21 timed out)

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## Neighborhood Analysis

• Subnet: 177.131.178.136/24
• Abuse Density: 0 (Clean)
• High Risk Neighbors: 0
• Medium Risk Neighbors: 0
• Low Risk Neighbors: 0
• Threat Siblings: 0
• Active Siblings: 0

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## Relationship Graph

• DNS Associations: 177-131-178-136.static.sumicity.net.br
• Network Association: 179753 (Same Network)

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## Observation History

Total Observations: 15

Most Recent: 2026-07-24

Key historical signals confirm:

• Residential infrastructure classification
• Brazil (BR) geolocation
• LACNIC registration
• Basic operator classification
• No ownership or threat persistence changes

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## Threat Intelligence Indicators

• Known Campaigns: None
• Threat Feeds: None
• Attack Indicators: None
• Spam Source: No
• Known Attacker: No
• Persistently Malicious: No

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## Recommended Actions

No security actions required. This IP presents a low-risk residential endpoint profile with no malicious indicators, threat associations, or abuse patterns. Standard monitoring is sufficient.

Firewall Rules: None required

WAF Rules: None required

Blocking: Not recommended

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## SOC Analyst Notes

This IP address represents a legitimate residential connection from a Brazilian fiber telecom provider. The address shows clean security posture with no threat indicators, no blacklist associations, and no evidence of abuse. The residential classification and lack of service exposure suggest normal consumer internet usage. No immediate action is warranted.

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End of Briefing

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.