# IP INTELLIGENCE BRIEFING: 5.167.65.123/32
Classification: Low Risk / Residential Endpoint
Date: Current Intelligence
Data Sources: IPDebrief Intelligence Platform
---
## EXECUTIVE SUMMARY
IP address 5.167.65.123 is a residential endpoint operated by ER-Telecom Holding (ASN: 57026), located in Cheboksary, Russia. The IP presents a low-risk profile with a reputation score of 25/100. No active threat indicators, malware, or malicious activity were detected. The address operates within a standard residential PPPoE network infrastructure.
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## NETWORK OWNERSHIP & GEOLOCATION
| Field | Value |
|---|---|
| ASN | 57026 |
| Organization | Network Operation Center CJSC ER-Telecom Holding Cheboksary branch |
| RIR | RIPE |
| Country | Russia (RU) |
| City | Cheboksary |
| CIDR Block | 5.167.64.0/22 |
| Network Classification | Residential Endpoint |
---
## THREAT ASSESSMENT
Risk Score: 25/100 (Low)
Abuse Confidence: Not elevated
Known Attacker Status: Negative
Spam Source Status: Negative
Tor Exit Node: Negative
Threat Indicators: None detected
Blacklist Presence: 0/8 DNSBL lists
Threat Persistence: No persistent malicious activity observed
---
## NETWORK BEHAVIOR
Open Ports: None detected
Active Services: None
TLS Certificates: None
DNS Records: Dynamic hostname (5x167x65x123.dynamic.cheb.ertelecom.ru)
Reverse DNS Confirmed: Yes
Email Authentication: SPF and DMARC records present
Network Role: Residential residential endpoint (not cloud, CDN, VPN, proxy, hosting, or mobile carrier infrastructure)
---
## SUBNET CONTEXT
Subnet: 5.167.65.123/24
Total Siblings: 256
Active Siblings: 138
Threat Siblings: 101
Abuse Density: 0.3945 (moderate)
Classification: Mixed
Risk Distribution in /24:
- High Risk: 0 (0%)
- Medium Risk: 65 (65%)
- Low Risk: 35 (35%)
The subnet demonstrates mixed usage with 101 threat-identified sibling IPs, though the target IP itself maintains a low-risk profile.
---
## OBSERVATION HISTORY
Total Observations: 54 signals tracked
Most Recent: 2026-06-24T20:01:30 UTC
Threat Persistence Days: 0
Is Persistently Malicious: No
Recent observations indicate stable behavior with no significant changes in geolocation, DNS, or threat profile. The IP has demonstrated consistent residential endpoint characteristics throughout the observation period.
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## RELATIONSHIP ANALYSIS
Total Relationships: 397
Primary Network: ERTH-CHEB-PPPOE-22-NET
The IP is associated with a large residential PPPoE network. All relationships point to the same network infrastructure, confirming the IP's residential nature and lack of association with command-and-control infrastructure or malicious networks.
---
## RECOMMENDED ACTIONS
Firewall Rules: No blocking required. Standard residential traffic monitoring applies.
Monitoring Level: Routine
Threat Response: No action required
This IP represents normal residential internet usage. No defensive actions are recommended beyond standard logging and monitoring practices.
---
END OF BRIEFING
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 | 5x167x65x123.dynamic.cheb.ertelecom.ru |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 5x167x65x123.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 23:05:22 UTC |
| Last Seen | 2026-06-26 18:12:12 UTC |
| Profile Built | 2026-06-27 06:19:20 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 57 |
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