123.121.3.55
IP Intelligence Briefing: 123.121.3.55/32
Date: 2026-06-17
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**1. Core Profile**
- Risk Score: 55 (Moderate Risk)
- Ownership:
- AS: AS4808 (China Unicom Beijing Province Network, UNICOM-BJ)
- Registrar: APNIC
- Country: China (CN)
- Geolocation:
- City: Beijing (CN)
- Accuracy Radius: 2500 km (inferred from DNSSEC and routing data)
- Threat Indicators:
- No malicious indicators, spam, or known attacker associations.
- DNSBL Listings: 3/8 (low risk).
- Network Role:
- Firewalled / No Services (no open ports, TLS, or HTTP activity).
- BGP Prefix: 123.121.0.0/18 (stable, DNSSEC-valid).
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**2. Observation History**
- Recent Signals (June 2026):
- Basic Risk: 0.35 (low).
- Routing Stability: Stable BGP routes (no recent changes).
- Ownership Consistency: Unchanging (AS4808).
- Geolocation Plausibility: Confirmed via DNSSEC and multi-signal inference.
- Trends: No persistent threats or abnormal behavior detected.
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**3. Relationships**
- Network Affiliation:
- Linked to UNICOM-BJ (China Unicom Beijing Province Network).
- No connections to known malicious organizations, domains, or certificates.
- Subnet:
- Part of 123.121.0.0/18 (AS4808).
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**4. Neighborhood Analysis**
- Subnet: 123.121.3.55/24
- Abuse Density: 0% (clean subnet).
- Neighbors: No active IPs or risky siblings detected.
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**5. Recommendations**
- Monitor: Track for unexpected service exposure (e.g., open ports, DNS changes).
- Verify: Confirm geolocation accuracy, as inferred data may have limited precision.
- No Immediate Action: No high-risk indicators require blocking or mitigation.
Source: IPDebrief Threat Intelligence Platform.
Note: This IP is part of a legitimate ISP network with no direct malicious associations. Further investigation is not required unless anomalous activity is observed.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | sun ying |
| ASN | AS4808 |
| Network Name | UNICOM-BJ |
| CIDR Block | 123.112.0.0/12 |
| RIR | APNIC |
| Country | CN |
| 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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| 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 | 21% | 2 | 2 |
| services | 8% | 1 | 1 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 23% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (65%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Fresh
| First Seen | 2026-05-07 23:03:37 UTC |
| Last Seen | 2026-06-22 12:32:52 UTC |
| Profile Built | 2026-06-22 17:50:11 UTC |
| Data Freshness | Fresh |
| Signal Types | 19 |
| Total Observations | 24 |
Full dossier details are available via our API.