IPDebrief

121.237.11.123

IP Intelligence Dossier
Your IP: 216.73.216.5
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🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 121.237.11.123/32

Classification: Low Risk

Date: 2026-07-30

Analysis Scope: Full profile, observation history, relationships, neighborhood

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## EXECUTIVE SUMMARY

IP 121.237.11.123 is a low-risk residential mobile endpoint located in Nanjing, China, associated with China Telecom (ASN 4134). No active threat indicators, blacklists, or malicious campaigns detected. The IP operates within a predominantly clean subnet with minimal abuse density. No security action required at this time.

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## TECHNICAL PROFILE

Ownership & Network Classification

FieldValue
ASN4134
OrganizationChinanet Hostmaster
NetworkCHINANET-JS
CIDR Block121.224.0.0/12
RIRAPNIC
CountryChina (CN)
RegionJiangsu (JS)
CityNanjing

Network Role & Services

Threat Assessment

MetricValue
Risk Score0
Abuse Confidence ScoreNot applicable
Blacklist Count0
Known AttackerFalse
Spam SourceFalse
Tor Exit NodeFalse
Known CampaignsNone

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## NEIGHBORHOOD ANALYSIS (121.237.11.0/24)

Notable high-risk siblings in neighborhood:

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## OBSERVATION HISTORY (15 Signals)

Recent activity shows consistent low-risk behavior:

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## RELATIONSHIP GRAPH

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## CONTROL PLANE

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## SECURITY ACTIONS

No specific firewall rules or mitigation actions required. The IP presents no active threat indicators and is classified as low-risk. Standard network policies apply.

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## RECOMMENDATION

Monitor as background traffic. No immediate threat detected. The IP is a legitimate mobile endpoint within a Chinese telecom network with minimal risk profile.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.

🌍 Geolocation

Country🇨🇳 China
RegionJS
CityNanjing
Timezone—
Latitude32.06
Longitude118.78

🏢 Ownership & Registration

OrganizationChinanet Hostmaster
ASNAS4134
Network NameCHINANET-JS
CIDR Block121.224.0.0/12
RIRAPNIC
CountryCN
Abuse ContactAvailable via RDAP

🌐 DNS Intelligence

PTR RecordNo PTR
Forward ConfirmedNo — PTR hostname does not resolve back to this IP (weak signal)

🔐 DNS Hygiene

Hygiene Score20% (Poor)
SPFNot configured
DMARCNot configured
FCrDNSNot verified
DNSSECValid
CAANot configured

☁️ Network Classification

InfrastructureMobile
Service PurposeFirewalled / No Services
Network TierUnknown — Insufficient routing data to classify
Mobile

🔌 Services & Open Ports

PortServiceProtocolBanner
No open ports detected
Closed Ports22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned)
Server—
HTTP Title—

🔐 TLS Certificate

🔒
No certificate
Issued by —
N/A
SANsNone
Valid From—
Valid Until—

🎯 Confidence Breakdown

Per-dimension confidence scores based on source diversity and data freshness

DimensionScoreSourcesObservations
threat
25%
11
routing
25%
11
services
25%
11
ownership
25%
12
reputation
0%
00
geolocation
0%
00
Overall16%45
Coverage: 4/6 dimensions · Data sufficiency: partial
Data CoherenceConsistent (100%)
AttributionModerate (50%)
OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid

📅 Observation Timeline 🔄 Live

First Seen2026-07-28 04:02:26 UTC
Last Seen2026-07-30 15:00:46 UTC
Profile Built2026-07-30 15:09:37 UTC
Data FreshnessLive
Signal Types19
Total Observations19
🔍 19 signal types · 19 observations collected
This report is generated from 19+ independent intelligence signals including ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds, behavioral fingerprinting, and more.
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ℹ️ About This Report

All data shown is publicly available network metadata — IP addresses do not reliably identify individuals. Assessments are probabilistic and should not be used as sole basis for access control decisions. To report an issue or request data review, contact admin@ipdebrief.com.