# IP Intelligence Briefing: 54.38.147.14/32
Classification: Moderate Risk (Score: 40)
Analysis Date: 2026-06-28
Data Source: IPDebrief Threat Intelligence Platform
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## Executive Summary
IP 54.38.147.14 is a cloud-hosted infrastructure endpoint associated with OVH (ASN 16276) in London, GB. While the individual IP carries a moderate risk profile (score 40), it resides within a high-abuse density subnet (54.38.147.0/24) with 162 of 256 sibling IPs classified as threats. The IP is associated with ahrefs.net domain infrastructure but shows no open ports or active services.
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## Technical Profile
| Attribute | Value |
|---|---|
| **Risk Score** | 40 (Moderate Risk) |
| **ASN** | 16276 (OVH) |
| **Organization** | Ahrefs Pte Ltd Dmytro |
| **Geolocation** | London, England, GB |
| **Infrastructure** | CloudCompute (OVH) |
| **DNS Hostname** | proxy-uk005-san14.ahrefs.net |
| **Network Role** | Hosting / Cloud |
| **Services** | None detected (Firewalled) |
---
## Threat Indicators
- Blacklist Status: Listed on 1 of 8 DNSBLs
- Tor/VPN/Proxy: Not detected
- Campaign Association: None
- Known Attacker: False
- Spam Source: False
---
## Neighborhood Analysis (54.38.147.0/24)
The IP resides in a subnet with concerning abuse characteristics:
- Abuse Density: 0.6328 (High)
- Threat Siblings: 162 of 256 IPs
- Inherited Risk Score: 25
- Active Siblings: 193
Risk distribution across subnet: 70% medium risk, 30% low risk, 0% high risk.
---
## Observation History
28 historical observations recorded. Recent signals indicate:
- Consistent cloud infrastructure classification (OVH)
- DNS blacklist activity detected on 2026-06-28
- Subnet abuse density classified as "high_abuse" on 2026-06-20
- No persistent malicious behavior detected
---
## Related Entities
- Network: OVH_282347341 (81 relationship entries)
- Domain: ahrefs.net
- Control Plane: BGP prefix 54.38.0.0/16, route stable, RPKI valid
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## Recommended Actions
| Platform | Rule |
|---|---|
| **iptables** | `iptables -A INPUT -s 54.38.147.14 -j DROP` |
| **nftables** | `nft add rule inet filter input ip saddr 54.38.147.14 drop` |
| **nginx** | `deny 54.38.147.14;` |
| **pfSense** | Block 54.38.147.14/32 |
| **Cloudflare WAF** | Block IP (Risk score: 40) |
| **AWS WAF** | Add 54.38.147.14/32 to blacklist |
---
## Analyst Notes
1. Contextual Risk: While the individual IP shows moderate risk, the high-abuse subnet environment warrants elevated scrutiny.
2. False Positive Consideration: The IP resolves to ahrefs.net, suggesting potential legitimate use. Consider blocking at application layer rather than network layer if traffic is observed.
3. Monitoring Priority: Medium. Recommend monitoring for connection attempts from this IP or subnet to internal assets.
4. Block Decision: Apply filtering based on organizational risk tolerance. The DNSBL listing and neighborhood abuse density support conservative blocking posture.
---
*This intelligence is based on IPDebrief data as of 2026-06-28. Correlate with internal threat detection systems before implementing blocking actions.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | โ |
| CIDR Block | 54.38.0.0/16 |
| RIR | ARIN |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | proxy-uk005-san14.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk005-san14.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 | Tier 3 โ Basic operator with some routing infrastructure |
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 | 24% | 2 | 3 |
| services | 17% | 2 | 3 |
| ownership | 22% | 3 | 4 |
| reputation | 28% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 27% | 12 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-16 21:01:18 UTC |
| Last Seen | 2026-06-28 04:06:07 UTC |
| Profile Built | 2026-06-28 22:11:06 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 31 |
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