172.236.1.57
# IP Intelligence Briefing: 172.236.1.57/32
## Executive Summary
IP address 172.236.1.57 was classified as Low Risk with a risk score of 25. The address is associated with Linode cloud infrastructure (AS63949) and resolves to London, England. No active malicious campaigns or threat indicators were identified during analysis.
## Infrastructure Profile
The IP address is hosted on Linode cloud infrastructure (network 172.232.0.0/13) and identified as a Single-Service Host. DNS resolution confirmed the address maps to 172-236-1-57.ip.linodeusercontent.com. The primary open port was SSH (22/tcp) with OpenSSH 10.0p2 Debian-7+deb13u4 banner.
## Threat Assessment
Risk evaluation returned the following indicators:
- Risk Score: 25 (Low Risk)
- Abuse Confidence Score: Not applicable
- Known Attacker Status: False
- Spam Source Status: False
- Tor Exit Node: False
- Blacklist Count: 0
- DNSBL Listings: 1 of 8 total lists
No threat indicators, known campaigns, or active abuse signals were detected.
## Neighborhood Analysis
The /24 subnet (172.236.1.0/24) showed zero abuse density with no active siblings identified. The subnet was classified as clean with no inherited risk from neighboring addresses.
## Temporal Observations
Observation history from 2026-08-13 revealed multiple port scans and geolocation signal variations between US and GB reporting. No persistent malicious activity or ownership changes were recorded. The IP showed no threat persistence indicators.
## Operational Classification
- Infrastructure Type: CloudCompute
- Connection Type: Cloud-hosted
- Operator Score: 0.2609 (Basic)
- Route Stability: Unstable
- RPKI State: Not reported
## Recommended Actions
No specific firewall or blocking recommendations were generated based on the risk profile. The IP address presents a low-risk profile consistent with legitimate cloud infrastructure hosting.
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*Analysis completed based on IPDebrief intelligence platform data.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Linode |
| ASN | AS63949 |
| Network Name | LINODE |
| CIDR Block | 172.232.0.0/13 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 172-236-1-57.ip.linodeusercontent.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 172-236-1-57.ip.linodeusercontent.com |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Single-Service Host |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
| SSH Version | SSH-2.0-OpenSSH_10.0p2 Debian-7+deb13u4 |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 21% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-07 01:04:07 UTC |
| Last Seen | 2026-09-02 06:37:03 UTC |
| Profile Built | 2026-09-02 06:50:49 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.