148.113.128.81
IP Intelligence Briefing: 148.113.128.81/32
*Generated via IPDebrief tools (June 13, 2026)*
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**Key Findings**
1. Network & Ownership
- Provider: OVH (ASN 16276), associated with Ahrefs Pte Ltd (netname: `OVH-CUST-281059693`).
- Geolocation: Reports Singapore (CA) but flagged as geoPlausible: false due to RTT anomalies (observed 29ms vs. expected 121.6ms for 6082km).
- Subnet: Part of `148.113.128.0/24`, with high abuse density (53.91%) and 138 threat-sibling IPs.
2. Threat Indicators
- No direct malicious activity detected (no indicators, blacklists, or campaigns).
- Risk Score: Moderate (40/100), but subnet-wide abuse density elevates risk context.
- DNS: Resolves to `proxy-ca014-san81.ahrefs.net` (domain: `ahrefs.net`), with DNSSEC and CAA records.
3. Network Behavior
- Services: No open ports or TLS certificates detected.
- Routing: BGP prefix `148.113.128.0/17`, with route instability (stable: false).
- Neighbor Risk: Subnet contains 256 IPs, 138 flagged as threats; 50% of neighbors have medium risk.
4. Historical Signals
- 21 observations since 2026-06-13, including geolocation, DNS, and subnet abuse data.
- Recent activity shows consistent network classification as "high_abuse" with inherited risk (21).
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**Actionable Insights for SOC**
1. Geolocation Discrepancy: Investigate the Singapore (CA) location claim, as RTT data suggests potential spoofing or misattribution.
2. Subnet Risk: Monitor the `148.113.128.0/24` subnet for lateral movement or coordinated activity, given its high abuse density.
3. DNS & Network: Verify DNS resolution for `ahrefs.net` and check for CAA/DNSSEC alignment.
4. Neighbor Analysis: Focus on high-risk neighbors (e.g., IPs with 40+ risk scores) for potential correlation.
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**Recommendations**
- Short-Term: Block or monitor traffic from this subnet if it aligns with known malicious patterns.
- Long-Term: Validate geolocation data and assess if the subnet is part of a larger infrastructure compromise.
*Data sourced from IPDebrief's full profile, history, relationships, and neighborhood analysis.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059693 |
| CIDR Block | 148.113.128.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca014-san81.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca014-san81.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | — |
| HTTP Title | — |
🔐 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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:44 UTC |
| Last Seen | 2026-06-26 23:44:01 UTC |
| Profile Built | 2026-06-27 13:57:27 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
Full dossier details are available via our API.