Is IP address 157.55.39.51 dangerous?

157.55.39.51 presents moderate risk with a threat level of 5/10. While not critically dangerous, it has been associated with activity. Monitoring and conditional blocking is recommended.

Who owns or operates IP address 157.55.39.51?

IP address 157.55.39.51 is operated by Microsoft Corporation (ASN 8075) and is geolocated to US. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 157.55.39.51?

Blocking 157.55.39.51 is advisable for security-sensitive environments. With a threat level of 5/10, consider implementing conditional blocks or rate limiting.

How accurate is this threat assessment for 157.55.39.51?

Our threat assessment for 157.55.39.51 has a confidence score of 0%, based on 0 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

157.55.39.51

IPv4 Public Whitelisted

AS8075

Microsoft Corporation

United States Location

Microsoft Corporation ASN 8075

0 Reports

Community Data Source

Intermediate Threat

Threat level 5/10 for 157.55.39.51 from 0 reports.

Concerning behaviors alongside normal activity. 0% confidence.

More threatening than 2% of monitored IPs

Cloud Infrastructure

This IP operates from Microsoft Azure cloud infrastructure. Cloud-hosted threats can be provisioned and abandoned quickly, affecting attribution.

Cloud-hosted malicious activity often indicates automated or scalable attack infrastructure.

Security Recommendations

Monitor for behavior pattern changes indicating escalation.

Reputation Summary

Threat Level 5/10 Medium

Medium

Activity Frequency 0/10 Inactive

Confidence Score 0% Unverified

Basic Information

IP Address: 157.55.39.51
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class B

Geolocation

Country: US
ASN: AS8075
ISP: Microsoft Corporation

DNS Information

Reverse DNS: msnbot-157-55-39-51.search.msn.com
PTR Record: Yes
Connection Type: Dynamic

Statistics

Total Reports: 0
First Reported: 12 Sep 2026
Last Reported: 12 Sep 2026, 02:48
Status: Whitelisted

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: AS8075

Organization: Microsoft Corporation

Country:

Network Threat Assessment

8/10

This network has a high threat level with significant malicious activity reported across multiple IPs.

Network Statistics

5,598

Total IPs Monitored

99,055

Total Reports

17.7

Reports per IP

Network Context

This IP address belongs to Microsoft Corporation (AS8075), which manages 5,598 IP addresses in our monitoring system. Out of these, 99,055 have been reported for suspicious activities, resulting in a network-wide threat level of 8/10.

Network warning: This network has elevated threat levels. Exercise caution when interacting with IPs from this ASN.

Comparative Analysis

How this IP compares to others in our threat intelligence database

2 %

Global Threat Ranking

This IP is more threatening than 2% of all IPs in our database.

Low Threat Percentile

Global Comparison

Compared against 1,317,745 reported IPs worldwide

Threat Level 5/10 avg: 6.0 -

Total Reports 0 avg: 7 --

Network Comparison

Compared against 13,419 IPs in ASN 8075

Threat Level 5/10 network avg: 8.0 -

Total Reports 0 network avg: 12 --

Network Microsoft Corporation has overall threat level 8/10

Geographic Comparison

Compared against 204,831 IPs in US

Threat Level 5/10 country avg: 6.6 -

Total Reports 0 country avg: 16 --

Geographic Threat Distribution

1,201,100 threat incidents tracked globally • Last 24h: 26,718 Logs

FEED

Top Threat Sources

01

Brazil BR

260,755 21.7%
02

United States US THIS IP

204,877 17.1%
03

India IN

103,225 8.6%
04

China CN

50,437 4.2%
05

Argentina AR

42,347 3.5%
06

SC SC

29,430 2.5%
07

Mexico MX

27,829 2.3%
08

Russia RU

26,868 2.2%
09

Colombia CO

24,246 2%
10

Germany DE

23,981 2%

+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

97% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Intermediate Threat

Cloud Infrastructure

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

Network Reputation

Network Identity

Network Threat Assessment

Network Statistics

Network Context

Global Threat Ranking

FEED

Top Threat Sources

JSON Report

Firewall Rules

iptables / netfilter

UFW (Ubuntu)

Windows Firewall

Cloudflare

nginx

Apache .htaccess

PDF Report

Analyzed high-risk IP addresses