Is IP address 187.57.131.55 dangerous?

Yes, 187.57.131.55 is considered dangerous with a threat level of 10/10. It has been reported 11 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 187.57.131.55?

IP address 187.57.131.55 is operated by TELEFONICA BRASIL S.A (ASN 27699) and is geolocated to BR. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 187.57.131.55?

Yes, blocking 187.57.131.55 is strongly recommended. With a threat level of 10/10 and 11 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 187.57.131.55?

Our threat assessment for 187.57.131.55 has a confidence score of 43%, based on 11 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

187.57.131.55

IPv4 Public

AS27699

TELEFONICA BRASIL S.A

11 Reports

Is this your IP address? If the cause is fixed, you can request removal. Free of charge, usually decided within 48 hours. Request delisting

Brazil Location

TELEFONICA BRASIL S.A ASN 27699

11 Reports

Honeypot Data Source

Critical Alert

Security alert: 187.57.131.55 rated 10/10 based on 11 verified incidents.

Threat profile indicates sustained malicious activity with 43% confidence rating.

More threatening than 97% of monitored IPs

Threat Categories

Hacking 11

Technical Details

General hacking activity includes various intrusion attempts, exploitation of vulnerabilities, and unauthorized access attempts.

Recommended Mitigations

Keep systems patched, implement intrusion detection, and follow security best practices.

Reputable Network

This IP is hosted on a network (ASN 27699) with generally good reputation. The ISP TELEFONICA BRASIL S.A maintains standard security practices.

The malicious activity may represent an isolated compromised system rather than systematic abuse.

Security Recommendations

Implement immediate countermeasures. Well-resourced threat actor identified.

Continue monitoring for emerging patterns.

Reputation Summary

Threat Level 10/10 Critical

Critical

Activity Frequency 0/10 Inactive

Confidence Score 42% Medium Confidence

Confidence History

22. Aug 2026 - 27. Aug 2026

43% Current

Stable Trend

Date	Categories	Source	Confidence
27. Aug 2026	Hacking	Honeypot	75%
27. Aug 2026	Hacking	Honeypot	75%
27. Aug 2026	Hacking	Honeypot	75%
26. Aug 2026	Hacking	Honeypot	75%
25. Aug 2026	Hacking	Honeypot	75%
25. Aug 2026	Hacking	Honeypot	75%
24. Aug 2026	Hacking	Honeypot	75%
24. Aug 2026	Hacking	Honeypot	75%
24. Aug 2026	Hacking	Honeypot	75%
23. Aug 2026	Hacking	Honeypot	75%
22. Aug 2026	Hacking	Honeypot	75%

Basic Information

IP Address: 187.57.131.55
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class B

Geolocation

Country: BR
ASN: AS27699
ISP: TELEFONICA BRASIL S.A

DNS Information

Reverse DNS: 187-57-131-55.dsl.telesp.net.br
PTR Record: Yes
Connection Type: Dynamic

Statistics

Total Reports: 11
First Reported: 22 Aug 2026
Last Reported: 27 Aug 2026, 21:50

Network Reputation

Analysis of the entire network (ASN) that this IP address belongs to, providing context about the hosting provider and network-wide threat patterns.

Network Identity

ASN: AS27699

Organization: TELEFONICA BRASIL S.A

Country:

Network Threat Assessment

1/10

This network appears to be relatively clean with very low threat indicators.

Network Statistics

Total IPs Monitored

339

Total Reports

7.2

Reports per IP

Network Context

This IP address belongs to TELEFONICA BRASIL S.A (AS27699), which manages 47 IP addresses in our monitoring system. Out of these, 339 have been reported for suspicious activities, resulting in a network-wide threat level of 1/10.

Network status: This network appears to be well-maintained with low threat indicators.

Comparative Analysis

How this IP compares to others in our threat intelligence database

97 %

Global Threat Ranking

This IP is more threatening than 97% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 806,351 reported IPs worldwide

Threat Level 10/10 avg: 6.3 ++

Total Reports 11 avg: 9 +

Network Comparison

Compared against 2,233 IPs in ASN 27699

Threat Level 10/10 network avg: 5.3 ++

Total Reports 11 network avg: 2 ++

Network TELEFONICA BRASIL S.A has overall threat level 1/10

Geographic Comparison

Compared against 110,734 IPs in BR

Threat Level 10/10 country avg: 5.4 ++

Total Reports 11 country avg: 3 ++

Daily report activity over the last 30 days showing patterns and peaks.

Peak Day 0 reports

Daily Average 0 reports/day

Most Active Monday 3 reports

Evolution of threat level over time based on reported categories and frequency.

Initial Threat 6/10

Current Threat 6/10

Distribution of threat categories reported over time.

Top Threat Categories

Hacking 11

Activity patterns showing when this IP is most active during the day and week.

Hourly Activity

Peak activity at 21:00 with 2 reports

Weekly Activity

Geographic Threat Distribution

733,286 threat incidents tracked globally • Last 24h: 28,708 Logs

FEED

Top Threat Sources

01

United States US

143,209 19.5%
02

Brazil BR THIS IP

110,734 15.1%
03

India IN

82,112 11.2%
04

China CN

44,742 6.1%
05

SC SC

29,233 4%
06

Germany DE

17,479 2.4%
07

Netherlands NL

17,464 2.4%
08

Pakistan PK

16,633 2.3%
09

Argentina AR

16,189 2.2%
10

Colombia CO

15,132 2.1%

+40 more countries

THREAT LEVEL

LOW MED HIGH

IPs from the same Autonomous System (AS) network provider.

20 Related IPs

9.1/10 Avg Threat

56% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Critical Alert

Threat Categories

Technical Details

Recommended Mitigations

Reputable Network

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

Network Reputation

Network Identity

Network Threat Assessment

Network Statistics

Network Context

Global Threat Ranking

Top Threat Categories

Hourly Activity

Weekly Activity

FEED

Top Threat Sources

JSON Report

Firewall Rules

iptables / netfilter

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Windows Firewall

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PDF Report

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