INTELLIGENCE BRIEFING: IP Address 52.167.144.209/32
Classification: Low Risk / Legitimate Infrastructure
Date Generated: 2026-07-29
Analyst: IPDebrief Intelligence Platform
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**SUMMARY**
IP address 52.167.144.209 is a Microsoft Bingbot crawler operating from Microsoft Corporation infrastructure. The IP exhibits benign behavior with no active threat indicators. This is legitimate Microsoft web crawler infrastructure, not malicious activity.
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**OWNERSHIP & INFRASTRUCTURE**
- Organization: Microsoft Corporation
- ASN: 8075 (MSFT)
- CIDR Block: 52.145.0.0/16
- Network Classification: Bingbot (Microsoft web crawler)
- Registration: ARIN RIR registry
- Contact: Abuse contact available via RDAP protocol
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**GEOLOCATION**
- Country: United States (US)
- Region: Wisconsin (WI)
- City: Madison
- Coordinates: 43.78°N, -88.79°W
- Timezone: America/Chicago
- Geolocation Confidence: Plausible (2 geo sources, consensus confirmed)
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**THREAT INDICATORS**
- Risk Score: 25 (Low Risk)
- Abuse Confidence: None detected
- Blacklist Count: 0
- Known Campaigns: None
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Threat Feeds: No matches
- DNSBL Listed: 1 of 8 total lists (routine operational listing)
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**NETWORK SERVICES**
- Open Ports: None (firewalled/no services exposed)
- HTTP Title: None (no web services running)
- TLS Certificate: None
- Server Banner: None
- Service Purpose: Firewalled / No Services
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**DNS INTELLIGENCE**
- PTR Hostname: msnbot-52-167-144-209.search.msn.com
- Forward Resolution: msnbot-52-167-144-209.search.msn.com
- Domain: msn.com
- Forward Resolution Count: 1
- Email Authentication: SPF record present, DMARC record present
- TXT Record Count: 0
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**NEIGHBORHOOD ANALYSIS (52.167.144.0/24)**
- Total Siblings: 97
- Active Siblings: 88
- Threat Siblings: 12
- Abuse Density: 0.1237 (moderate)
- Subnet Classification: Mostly Clean
- Inherited Risk: 4
- Risk Distribution: 95 Low Risk, 1 Medium Risk, 0 High Risk
Notable neighboring IPs include 52.167.144.16, 52.167.144.18, 52.167.144.19, 52.167.144.20, and 52.167.144.21 (all with risk score 25, authority score 60).
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**OBSERVATION HISTORY**
- Total Observations: 20 signals captured
- Most Recent: 2026-07-29T15:40:56 UTC
- Ownership Stability: No ownership changes detected
- Threat Persistence: 0 days
- Persistent Malicious Activity: Not detected
- Recent Signal Types: TLS scans, subnet analysis, traceroute validation, ownership tracking
The IP has demonstrated consistent operational behavior with no escalation in risk profile over the observation period.
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**RELATIONSHIP GRAPH**
- Same Network Associations: MSFT (Microsoft Corporation)
- DNS Associations: msnbot-52-167-144-209.search.msn.com
- Total Relationships: 8 entities identified
- Network Affiliations: Multiple MSFT network references
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**CONTROL PLANE DATA**
- Origin ASN: 8075
- BGP Prefix: 52.160.0.0/11
- Route Stability: Unstable (route changes detected)
- MoAS: No
- Route Changes (30d): 0
- DNSSEC Valid: Yes
- CAA Records: Present
- Operator Score: 0.3478 (Basic)
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**RECOMMENDED ACTIONS**
Based on the risk profile, no blocking or filtering actions are recommended. This IP represents legitimate Microsoft Bingbot crawler infrastructure performing normal web indexing operations.
Suggested Handling:
- Allow traffic (no firewall rules required)
- Monitor for anomalous behavior patterns
- No threat mitigation needed
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**INTELLIGENCE CONCLUSION**
IP 52.167.144.209 is confirmed Microsoft Bingbot crawler infrastructure with low-risk operational characteristics. The IP is part of Microsoft's global web crawler network, operating from Madison, WI infrastructure. No malicious indicators, threat feeds, or abuse patterns detected. This IP should be treated as benign and permitted through network security controls.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | MSFT |
| CIDR Block | 52.145.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | msnbot-52-167-144-209.search.msn.com |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | msnbot-52-167-144-209.search.msn.com |
π DNS Hygiene
| Hygiene Score | 100% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 β Basic operator with some routing infrastructure |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 25% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-07-22 19:33:20 UTC |
| Last Seen | 2026-08-12 17:17:18 UTC |
| Profile Built | 2026-08-12 17:31:45 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 26 |
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