# IP Intelligence Briefing: 54.39.210.101
## Executive Summary
IP 54.39.210.101 is a moderate-risk cloud compute address associated with OVH hosting infrastructure in Beauharnois, QC, Canada. The IP resolves to aresolvable hostname proxy-ca007-san101.ahrefs.net under the ahrefs.net domain. No active services or open ports were detected on this endpoint.
## Infrastructure Profile
- IP Address: 54.39.210.101/32
- Risk Score: 40 (Moderate Risk)
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- Infrastructure Type: Cloud Compute / Hosting
- Location: Beauharnois, Quebec, Canada (CA)
- DNS Resolution: proxy-ca007-san101.ahrefs.net
## Threat Indicators
- Blacklist Status: 0 blacklist hits; 1 DNSBL listing among 8 total lists
- Campaign Activity: None detected
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Abuse Confidence Score: Not available
## Network Neighborhood Analysis
The /24 subnet (54.39.210.0/24) exhibits elevated abuse density characteristics:
- Subnet Classification: High Abuse
- Active Siblings: 201 of 256 total IPs
- Threat Siblings: 205
- Inherited Risk: 32
- Neighboring IPs: All 100 sampled neighbors show risk score of 40 with authority score of 50
The neighborhood risk profile indicates a shared hosting environment with concentrated medium-risk activity across the subnet.
## Historical Observations
Analysis of 22 historical observations reveals:
- Observation Period: Activity documented through June 2026
- Threat Persistence: 0 days of persistent malicious behavior
- Ownership Changes: None recorded
- Operator Score: 0.2174 (Minimal)
Historical data shows consistent moderate-risk classification with no escalation patterns observed. The subnet abuse density remained stable at 0.8008 classification.
## Route Stability
The IP exhibits route instability:
- Route Status: Unstable (isRouteStable: false)
- Route Changes (30d): 0
- BGP Prefix: 54.39.0.0/16
## Recommended Actions
Given the moderate risk classification and elevated neighborhood abuse density, the following actions are recommended:
1. Monitor: Add to SOC monitoring queue for traffic pattern analysis
2. Block Decision: Block if observed as source of malicious traffic; otherwise monitor
3. Firewall Rules: Consider rate limiting from this IP if traffic patterns indicate abuse
4. Whitelist Verification: If legitimate traffic observed from ahrefs.net services, verify against known service endpoints
## Notes
- No active services detected on this endpoint
- DNS records confirm association with ahrefs.net infrastructure
- Geolocation validation shows RTT discrepancy (5628.6km vs minimum possible 112.6ms)
- No email authentication records found for associated domain
---
*Intelligence generated from IPDebrief platform analysis.*
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-281059686 |
| CIDR Block | 54.39.210.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca007-san101.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca007-san101.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 | 26% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 22% | 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 | 2026-05-23 12:24:26 UTC |
| Last Seen | 2026-06-28 21:58:08 UTC |
| Profile Built | 2026-06-29 10:01:32 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 23 |
Full dossier details are available via our API.