# IP Intelligence Briefing: 54.39.203.167/32
## Executive Summary
IP 54.39.203.167 presents as a Moderate Risk (Score: 40) cloud infrastructure address associated with OVH SAS hosting environment. While no active threat indicators were detected, the IP operates within a high-abuse density subnet (0.6602) containing 169 threat siblings. Recommended action: Monitor with selective blocking for specific service access.
## Infrastructure Profile
- Organization: Dmytro, Ahrefs Pte Ltd
- ASN: AS16276 (OVH SAS)
- Network Block: 54.39.203.0/24
- Geolocation: Beauharnois, QC, Canada (CA)
- Infrastructure Type: Cloud Compute / Hosting
- DNS: proxy-ca008-san167.ahrefs.net (ahrefs.net)
## Risk Assessment
- Overall Risk Score: 40/100 (Moderate)
- Abuse Density: 0.6602 (High Abuse Classification)
- Inherited Subnet Risk: 26/100
- Blacklist Count: 0
- Known Threats: None detected
- Tor/Proxy/VPN: Not identified as malicious infrastructure
## Threat Indicators
- No active threat indicators observed
- No blacklist entries
- No known campaign associations
- No active open ports or services detected (firewalled/no services)
- DNSSEC valid: Yes
- Route stability: False (indicating dynamic BGP configuration)
## Neighborhood Analysis
The /24 subnet (54.39.203.0/24) shows elevated activity:
- Total IPs: 256
- Active IPs: 222
- Threat Siblings: 169
- Risk Distribution: 56 Medium, 44 Low, 0 High
## Historical Observations
Signal history shows 22 observations over the period. Consistent DNS resolution to ahrefs.net observed. Geolocation signals indicate Canadian origin with varying confidence levels. No evidence of escalating threat behavior.
## Recommended Actions
Firewall Rules:
- `iptables -A INPUT -s 54.39.203.167 -j DROP`
- `nft add rule inet filter input ip saddr 54.39.203.167 drop`
- `nginx deny 54.39.203.167;`
- Cloudflare/AWS WAF: Block 54.39.203.167/32
Analysis Notes:
- Blocking recommended due to high-abuse subnet context
- No active service exposure mitigates immediate threat
- Monitor for service initiation or behavior changes
- Subnet-level monitoring advised due to 169 threat siblings
## Intelligence Context
The IP appears to be part of Ahrefs web infrastructure (proxy service). While no direct malicious activity was observed, the high-abuse subnet classification warrants defensive posture. The IP's classification as "Firewalled/No Services" suggests it may serve as a management or proxy endpoint rather than a public-facing service.
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*Report generated from IPDebrief intelligence platform. Data reflects observations as of analysis time.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca008-san167.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san167.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-21 14:58:05 UTC |
| Last Seen | 2026-06-28 14:40:21 UTC |
| Profile Built | 2026-06-29 08:46:00 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
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