Is IP address 87.103.126.54 dangerous?

Yes, 87.103.126.54 is considered dangerous with a threat level of 7/10. It has been reported 10 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 87.103.126.54?

IP address 87.103.126.54 is operated by Vodafone Portugal - Communicacoes Pessoais S.A. (ASN 12353) and is geolocated to PT. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 87.103.126.54?

Yes, blocking 87.103.126.54 is strongly recommended. With a threat level of 7/10 and 10 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 87.103.126.54?

Our threat assessment for 87.103.126.54 has a confidence score of 86%, based on 10 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

87.103.126.54

IPv4 Public

AS12353

Vodafone Portugal - Communicacoes Pessoais S.A.

10 Reports

Portugal Location

Vodafone Portugal - Commu... ASN 12353

10 Reports

Mixed Data Source

High Risk

IP 87.103.126.54 rated at threat level 7/10 based on 10 security reports.

Pattern analysis reveals concerning activity. Confidence: 86%.

More threatening than 74% of monitored IPs

Threat Categories

Email Spam 6

Brute-Force 4

Technical Details

Email spam involves mass distribution of unwanted emails, often for advertising, phishing, or malware delivery.

Recommended Mitigations

Implement SPF, DKIM, DMARC, and use reputable email filtering services.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 2 weeks indicates persistent threat actor operations.

First Observed 11. May 2026

Last Activity 27. May 2026

Recent (7 days) 0 incidents

Reputable Network

This IP is hosted on a network (ASN 12353) with generally good reputation. The ISP Vodafone Portugal - Communicacoes Pessoais S.A. maintains standard security practices.

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

Security Recommendations

Monitor closely and consider blocking. Escalation potential detected.

Long-term blocking recommended.

Reputation Summary

Threat Level 7/10 High

High

Activity Frequency 3/10 Low

Confidence Score 79% Verified

Confidence History

8. May 2026 - 27. May 2026

86% Current

Stable Trend

Date	Categories	Source	Confidence
27. May 2026	Brute-Force	Community	75%
24. May 2026	Brute-Force	Community	75%
24. May 2026	Brute-Force	Community	75%
15. May 2026	Email Spam	Honeypot	75%
15. May 2026	Email Spam	Honeypot	75%
14. May 2026	Email Spam	Honeypot	75%
13. May 2026	Brute-Force	Honeypot	75%
11. May 2026	Email Spam	Honeypot	75%
9. May 2026	Email Spam	Honeypot	75%
8. May 2026	Email Spam	Honeypot	75%

Basic Information

IP Address: 87.103.126.54
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: PT
ASN: AS12353
ISP: Vodafone Portugal - Communicacoes Pessoais S.A.

DNS Information

Reverse DNS: 54.126.103.87.rev.vodafone.pt
PTR Record: Yes
Connection Type: Dynamic

Statistics

Total Reports: 10
First Reported: 8 May 2026
Last Reported: 27 May 2026, 14:37

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: AS12353

Organization: Vodafone Portugal - Communicacoes Pessoais S.A.

Country:

Network Threat Assessment

2/10

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

Network Statistics

Total IPs Monitored

208

Total Reports

17.3

Reports per IP

Network Context

This IP address belongs to Vodafone Portugal - Communicacoes Pessoais S.A. (AS12353), which manages 12 IP addresses in our monitoring system. Out of these, 208 have been reported for suspicious activities, resulting in a network-wide threat level of 2/10.

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

74 %

Global Threat Ranking

This IP is more threatening than 74% of all IPs in our database.

Above Average Threat

Global Comparison

Compared against 199,756 reported IPs worldwide

Threat Level 7/10 avg: 5.3 +

Total Reports 10 avg: 23 --

Network Comparison

Compared against 47 IPs in ASN 12353

Threat Level 7/10 network avg: 5.3 +

Total Reports 10 network avg: 4 ++

Network Vodafone Portugal - Communicacoes Pessoais S.A. has overall threat level 2/10

Geographic Comparison

Compared against 722 IPs in PT

Threat Level 7/10 country avg: 7.5 =

Total Reports 10 country avg: 16 -

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

Peak Day 15 May 2026 2 reports

Daily Average 0.3 reports/day

Most Active Friday 3 reports

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

Initial Threat 3/10

Current Threat 4/10

Distribution of threat categories reported over time.

Top Threat Categories

Email Spam 6

Brute-Force 4

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

Hourly Activity

Peak activity at 01:00 with 2 reports

Weekly Activity

Geographic Threat Distribution

187,378 threat incidents tracked globally • Last 24h: 18,990 Logs

FEED

Top Threat Sources

01

United States US

38,468 20.5%
02

India IN

29,138 15.6%
03

China CN

26,029 13.9%
04

Brazil BR

10,256 5.5%
05

Germany DE

7,144 3.8%
06

Singapore SG

6,476 3.5%
07

Indonesia ID

5,551 3%
08

Russia RU

4,703 2.5%
09

Pakistan PK

4,677 2.5%
10

Netherlands NL

4,358 2.3%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

6.2/10 Avg Threat

43% Avg Confidence

14 High Threat

High-risk network: Majority of related IPs are flagged

High Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

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

UFW (Ubuntu)

Windows Firewall

Cloudflare

nginx

Apache .htaccess

PDF Report

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Consultation

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