65.181.91.88
## IP Intelligence Briefing: 65.181.91.88
Classification: Low Risk / Infrastructure
Date: July 25, 2026
Ownership & Network Context
IP address 65.181.91.88 belongs to IRT-PCCW-BIA-HK (Organization: PCCW-BIA-HK, ASN: 4760). The address is allocated within the 65.181.64.0/19 CIDR block registered with ARIN. Geolocation data places the IP in Quarry Bay, Hong Kong (Asia/Hong_Kong timezone) with 30km accuracy radius.
Threat Assessment
Risk Score: 0.0 (Low Risk)
Abuse Confidence: None detected
Blacklist Status: Clean (0 blacklists)
The IP address shows no malicious indicators:
- Not identified as a Tor exit node, known attacker, or spam source
- No threat indicators in any feeds
- No known campaign associations
- No certificate matches for malicious activity
Network Behavior & Services
Network Role: Firewalled / No Services
Open Ports: None detected
DNS Resolution: 65-181-91-088.static.imsbiz.com (imsbiz.com domain)
Forward Resolution: Confirmed (1 hostname)
The IP shows no active services, no TLS certificates, and no HTTP responses. This suggests the address is either unused, reserved for future use, or actively blocked at the application layer.
Routing & Infrastructure
Origin ASN: 4760 (PCCW-BIA-HK)
BGP Prefix: 65.181.91.0/24
Route Stability: Unstable (isRouteStable: false)
DNSSEC: Valid
Control Plane Risk: Minimal (Operator Score: 0.1304)
Traceroute: 30 hops, 236.1ms last hop RTT, 18 timed-out hops via Comcast transit
Neighborhood Analysis
Subnet assessment for 65.181.91.88/24 shows:
- Total Neighbors: 0
- Abuse Density: 0
- High/Medium/Low Risk Distribution: None
- Threat Siblings: None
No neighboring IP addresses were detected in the immediate subnet, indicating this is an isolated or sparse deployment.
Historical Observations
Total Observations: 15
Observation Period: Recent 7-day window (July 25, 2026)
Key Signals:
- Ownership consistency: No changes detected
- Organization registration: Consistent (IRT-PCCW-BIA-HK)
- Geolocation: Stable (HK Quarry Bay)
- Threat observations: 0 persistent malicious days
The IP has demonstrated stable ownership characteristics with no escalation in threat signals over the observation period.
Recommended Actions
Security Posture: No immediate action required
Firewall Rules: None recommended
Monitoring: Standard monitoring sufficient
SOC Analyst Notes
This IP address represents benign infrastructure with no threat indicators. The address is part of a telecommunications provider network (PCCW) in Hong Kong showing no signs of abuse, malware distribution, or command-and-control activity. The absence of open services and clean reputation metrics indicate this IP poses no threat to organizational security. No blocking or mitigation measures are warranted.
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Intelligence Source: IPDebrief Threat Intelligence Platform
Classification: Defensive Security Analysis
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-PCCW-BIA-HK |
| ASN | AS4760 |
| Network Name | PCCW-BIA-HK |
| CIDR Block | 65.181.64.0/19 |
| RIR | ARIN |
| Country | HK |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 65-181-91-088.static.imsbiz.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 65-181-91-088.static.imsbiz.com |
🔐 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 | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS4760 |
| Network Prefix | 65.181.91.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-09 13:32:54 UTC |
| Last Seen | 2026-08-27 04:00:25 UTC |
| Profile Built | 2026-08-29 06:06:31 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 65.181.91.88
Who owns the IP address 65.181.91.88?
65.181.91.88 is registered to IRT-PCCW-BIA-HK. The address falls within the 65.181.64.0/19 network block. Registration is held at ARIN.
Where is 65.181.91.88 located?
Geolocation data places 65.181.91.88 in Hong Kong, HK, Hong Kong. The local time zone is Asia/Hong_Kong. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 65.181.91.88 malicious or safe?
65.181.91.88 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 65.181.91.88?
The reverse DNS (PTR) record for 65.181.91.88 is 65-181-91-088.static.imsbiz.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.