# 52.123.251.181 — IP Intelligence Summary

52.123.251.181 is an IPv4 address operated by Microsoft Corporation (AS8075), geolocated to Boston, United States. It belongs to datacenter or hosting infrastructure. As of November 2, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/52.123.251.181
- Last updated: 2026-11-02

## Ownership

- Organization: Microsoft Corporation
- Network name: MSFT
- Allocated block: 52.120.0.0/14
- ASN: AS8075 (https://ipdebrief.com/asn/8075)
- Regional registry: ARIN

## Location

- City: Boston
- Region: US-MA
- Country: United States
- Time zone: America/New_York

## Network classification

- Infrastructure type: CloudCompute
- Datacenter / hosting: yes
- Residential: no
- Mobile: no
- Anycast: no
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (25/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Exposed services

- 80/tcp — http
- 443/tcp — https
- 8443/tcp — https-alt

## Analyst narrative

The IP address 52.123.251.181/32 was assigned to Microsoft Corporation (ASN 8075, MSFT) within the US-MA region. The address operated as a CloudCompute Web Server, presenting open ports 80, 443, and 8443. TLS certificates validated for outlook.com were observed. The reputation risk score remained Low (25), yet the threat actor classification labeled the host as "Suspicious Host" with "Unknown Intent."

Network control plane data indicated the route was not stable, recording three changes over the previous 30 days. Geolocation data presented contradictions between claimed coordinates and RTT physics measurements, with sources disagreeing on country code (CA, US). The IP was listed on one of eight DNSBL lists. The associated /24 neighborhood contained 17 threat siblings out of 106 active siblings.

Based on signal contradictions and neighborhood analysis, the recommendation was to Monitor traffic with Low Severity. No specific known campaigns were attributed to this address during the observation window from 2026-09-27 to 2026-10-14.

## Nearby addresses

- 52.123.251.0 (https://ipdebrief.com/52.123.251.0)
- 52.123.251.1 (https://ipdebrief.com/52.123.251.1)
- 52.123.251.3 (https://ipdebrief.com/52.123.251.3)
- 52.123.251.4 (https://ipdebrief.com/52.123.251.4)
- 52.123.251.9 (https://ipdebrief.com/52.123.251.9)
- 52.123.251.10 (https://ipdebrief.com/52.123.251.10)
- 52.123.251.11 (https://ipdebrief.com/52.123.251.11)
- 52.123.251.12 (https://ipdebrief.com/52.123.251.12)
- 52.123.251.13 (https://ipdebrief.com/52.123.251.13)
- 52.123.251.14 (https://ipdebrief.com/52.123.251.14)
- 52.123.251.16 (https://ipdebrief.com/52.123.251.16)
- 52.123.251.17 (https://ipdebrief.com/52.123.251.17)

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Source: IPDebrief, "52.123.251.181 IP intelligence", https://ipdebrief.com/52.123.251.181, updated 2026-11-02. Assessments are probabilistic.