IP Address

5.173.28.21

IPv4 Public
PL PL
AS39603
Play
2 Reports
This IP is under Observation Suspicious activity detected - monitor closely
5/10 Threat
43% Confidence
2 Reports
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Threat Intelligence Analysis

Automated assessment based on aggregated, anonymized threat data

Moderate Risk
PL
Poland Location
Play ASN 39603
2 Reports
Honeypot Data Source

Measured Risk

IP 5.173.28.21 threat rating: 5/10 from 2 observations.

Attention-worthy behavior detected. Confidence: 43%.

More threatening than 50% of monitored IPs

Threat Categories

Fraud VoIP 1
Bad Web Bot 1
WP Content Scraping 1

Technical Details

VoIP fraud exploits phone systems to make unauthorized calls, often to premium rate numbers for financial gain.

Recommended Mitigations

Implement call authentication, monitor call patterns, and restrict international/premium rate dialing.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 6 days indicates persistent threat actor operations.

First Observed 18. October 2026
Last Activity 24. October 2026
Recent (7 days) 2 incidents

Reputable Network

This IP is hosted on a network (ASN 39603) with generally good reputation. The ISP Play maintains standard security practices.

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

Security Recommendations

Standard security protocols sufficient. Monitor but no immediate blocking required.

Long-term blocking recommended.

This analysis is automatically generated from aggregated, anonymized threat intelligence data. No personal information is displayed or stored. Assessment accuracy depends on available data volume and diversity.

Reputation Summary

Threat Level 5/10 Medium
Medium
Activity Frequency 2/10 Very Low
Confidence Score 43% Medium Confidence

Confidence History

18. Oct 2026 - 24. Oct 2026
43% Current
Stable Trend

The confidence score shows the reliability of the threat assessment based on the number and quality of reports.

Security Reports (2)

Date Categories Source Confidence
New Fraud VoIP Honeypot 75%
Bad Web Bot WP Content Scraping Honeypot 75%

Technical Details

Basic Information

IP Address
5.173.28.21
IP Version
IPv4
Network Type
Public
Tor Network
No
Network Class
Class A

Geolocation

Country
PL PL
ASN
AS39603
ISP
Play

DNS Information

Reverse DNS
user-5-173-28-21.play-internet.pl
PTR Record
Yes
Connection Type
Dynamic

Statistics

Total Reports
2
First Reported
22 Oct 2026
Last Reported
24 Oct 2026, 20:11

Comparative Analysis

How this IP compares to others in our threat intelligence database

50 %

Global Threat Ranking

This IP is more threatening than 50% of all IPs in our database.

Above Average Threat

Global Comparison

Compared against 1,197,588 reported IPs worldwide

Threat Level 5/10 avg: 6.0 -
Total Reports 2 avg: 7 --

Network Comparison

Compared against 568 IPs in ASN 39603

Threat Level 5/10 network avg: 5.0 =
Total Reports 2 network avg: 1 ++

Geographic Comparison

Compared against 9,869 IPs in PL

Threat Level 5/10 country avg: 5.6 =
Total Reports 2 country avg: 5 --
Indicators:
++ Much Higher + Higher = Similar - Lower -- Much Lower

Geographic Threat Distribution

1,092,301 threat incidents tracked globally • Last 24h: 32,585 Logs

FEED

Top Threat Sources

  1. 01
    BR
    Brazil BR
    237,059 21.7%
  2. 02
    US
    United States US
    190,849 17.5%
  3. 03
    IN
    India IN
    95,840 8.8%
  4. 04
    CN
    China CN
    48,126 4.4%
  5. 05
    AR
    Argentina AR
    38,225 3.5%
  6. 06
    SC
    SC SC
    29,348 2.7%
  7. 07
    MX
    Mexico MX
    24,807 2.3%
  8. 08
    RU
    Russia RU
    23,994 2.2%
  9. 09
    CO
    Colombia CO
    22,629 2.1%
  10. 10
    DE
    Germany DE
    20,883 1.9%

+40 more countries

THREAT LEVEL
LOW MED HIGH

Geographic data is aggregated and anonymized. No personal information displayed.

Map: simplemaps.com (MIT License)

Related IPs

Other IPs associated with this address through network or behavioral similarity

IPs from the same subnet range, likely same network segment.

3 Related IPs
5/10 Avg Threat
20% Avg Confidence
5.173.28.80 5/10
Confidence 23%
Reports 1
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17 Oct 2026
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Confidence 23%
Reports 1
Location PL PL
18 Oct 2026
5.173.28.76 5/10
Confidence 13%
Reports 1
Location PL PL
29 Aug 2026

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IPs with similar threat level and confidence scores.

15 Related IPs
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7 High Threat
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Location AZ AZ
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Location BE BE
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Export & Firewall Rules

Download threat data or generate firewall rules to block this IP

JSON Report

Structured data format for integration with security tools and SIEM systems.

{
    "ip_address": "5.173.28.21",
    "threat_level": 5,
    "confidence_score": 43,
    "total_reports": 2,
    "country_code": "PL",
    "isp_name": "Play",
    "asn": "39603",
    "first_reported": "2026-10-22 18:36:25",
    "last_reported": "2026-10-24 20:11:11",
    "exported_at": "2026-10-25T00:22:01+02:00",
    "source": "https://reportedip.com/ip/5.173.28.21/"
}
Download JSON

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Analyzed high-risk IP addresses