# IP Intelligence Briefing: 5.167.66.209/32
## Executive Summary
IP address 5.167.66.209 is a residential endpoint located in Cheboksary, Russia, assigned to ER-Telecom Holding CJSC. The IP carries a moderate risk score of 40/100 with no active threat indicators. The residential subnet (5.167.66.0/24) exhibits elevated abuse density, warranting contextual awareness.
## Technical Profile
Ownership & Registration
- ASN: 57026 (Network Operation Center CJSC ER-Telecom Holding Cheboksary branch)
- RIR: RIPE
- Organization: ER-Telecom Holding
- Network Block: 5.167.64.0/22
Geolocation
- Country: RU (Russia)
- Region: Cheboksary
- Location Accuracy: ~5000km radius (ICMP blocked validation)
Network Classification
- Type: Residential Endpoint
- Infrastructure: Not cloud/CDN/VPN/proxy
- Connection: Residential broadband
## Threat Assessment
Risk Indicators
- Risk Score: 40/100 (Moderate)
- Threat Reputation: No known attacks, spam, or malicious campaigns
- Blacklist Status: 0 active blacklists
- DNSBL Listings: 1 of 8 total lists
DNS Configuration
- Reverse DNS: 5x167x66x209.dynamic.cheb.ertelecom.ru
- SPF/DMARC: Configured for domain ertelecom.ru
- Forward Resolution: Confirmed
## Neighborhood Analysis
Subnet Context: 5.167.66.0/24
- Total IPs: 256
- Active IPs: 134
- Abuse Density: High (classification)
- Risk Distribution: 77 low-risk, 23 medium-risk, 0 high-risk neighbors
- Notable Neighbor IPs: 5.167.66.3 (risk: 49), 5.167.66.4 (risk: 49)
## Observation History
Temporal Analysis
- Total Observations: 55
- Threat Persistence: 0 days
- Ownership Stability: No changes recorded
- Recent Signals: Minimal risk patterns observed across multiple timestamps
- Campaign Correlation: None detected
## Relationship Graph
Connected Entities
- Network Association: ERTH-CHEB-PPPOE-22-NET
- Total Relationships: 403
- Relationship Types: Primarily network-level associations
## Recommended Actions
Firewall/Security Rules
No specific blocking actions recommended. The IP operates as a legitimate residential endpoint with no active malicious indicators. Monitor for behavioral changes consistent with elevated-risk neighborhood context.
SOC Guidance
- Contextual awareness required due to high-abuse-density subnet
- No immediate blocking required; monitor for emerging threat indicators
- Standard residential endpoint traffic patterns expected
## Intelligence Confidence
Data Sufficiency: Moderate
- GeoValidation: Limited by ICMP blocking
- Control Plane: Stable routing (origin ASN 57026 via 6939 โ 9049)
- Historical Depth: 55 observations provide temporal context
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Network Operation Center CJSC ER-Telecom Holding Cheboksary branch |
| ASN | AS57026 |
| Network Name | โ |
| CIDR Block | 5.167.64.0/22 |
| RIR | RIPE |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | 5x167x66x209.dynamic.cheb.ertelecom.ru |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 5x167x66x209.dynamic.cheb.ertelecom.ru |
๐ DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Residential |
| Service Purpose | Residential Endpoint |
| Network Tier | End-User โ Residential ISP endpoint |
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 | 23% | 2 | 4 |
| routing | 25% | 2 | 3 |
| services | 17% | 2 | 3 |
| ownership | 22% | 3 | 4 |
| reputation | 27% | 1 | 3 |
| geolocation | 31% | 2 | 3 |
| Overall | 24% | 12 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-07 23:05:23 UTC |
| Last Seen | 2026-06-26 18:12:13 UTC |
| Profile Built | 2026-06-27 05:47:20 UTC |
| Data Freshness | Live |
| Signal Types | 28 |
| Total Observations | 56 |
Full dossier details are available via our API.