31.173.21.11
IP Intelligence Briefing: 31.173.21.11
*Generated via IPDebrief Threat Intelligence Platform*
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**Key Risk Indicators**
- Risk Score: 80 (High Risk)
- Threat Observations:
- Listed in 4/8 DNSBLs (high severity) as of June 12, 2026.
- No active services, DNS, or TLS certificates detected.
- Firewalled network with no open ports or banners.
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**Network & Ownership**
- ASN: 25159 (GDC-TR-CoreIP)
- Geolocation: Russia (RU), no city/region specified.
- Network Role: Fixed IP, residential/mobile network (associated with MegaFon).
- Subnet: 31.173.21.11/24 (clean, abuse density 0).
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**Observation History**
- Recent Activity (June 2026):
- Detected as a high-risk IP with DNSBL listings.
- Network prefix 31.173.16.0/21 linked to MegaFon (RU).
- Minimal operator risk score (0.13).
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**Relationships & Neighbors**
- Shared Network:
- Part of MF-MOSCOW-MBB-FIXEDIP-31-173-16-0 (residential/fixed IP subnet).
- Neighbors:
- 31.173.21.229 (low risk, score 0).
- Subnet remains clean with no abuse incidents.
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**Recommended Actions**
1. Block the IP in firewalls (iptables/nftables) due to DNSBL associations.
2. Monitor the subnet (31.173.21.0/24) for lateral movement or compromised neighbors.
3. Verify DNSBL listings with upstream providers to confirm legitimacy.
4. Check for network-wide compromises in the MegaFon subnet.
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*End of Briefing*
*Generated by IPDebrief Threat Intelligence Platform*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | GDC-TR-CoreIP |
| ASN | AS25159 |
| Network Name | — |
| CIDR Block | — |
| RIR | RIPE |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | 32% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 26% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 21% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:15 UTC |
| Last Seen | 2026-06-26 18:11:12 UTC |
| Profile Built | 2026-06-23 10:36:15 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 19 |
Full dossier details are available via our API.