136.66.181.0
# IP Intelligence Briefing: 136.66.181.0
## Executive Summary
IP address 136.66.181.0 is a Google Cloud Platform (GCP) infrastructure endpoint classified as Low Risk with a risk score of 25. The address belongs to Google LLC (ASN 396982) within the 136.64.0.0/11 CIDR block, geolocated to The Dalles, Oregon, US. No active threat indicators, malicious campaigns, or blacklist associations were detected.
## Infrastructure Profile
- Organization: Google LLC (ASN 396982, GOOGL-2)
- Network Block: 136.64.0.0/11
- Geolocation: The Dalles, OR, US (45.6°N, 121.18°W)
- Infrastructure Type: CloudCompute / Google Cloud Provider
- DNS Resolution: 0.181.66.136.bc.googleusercontent.com
- Service Status: Firewalled / No Services Detected
- Open Ports: None
- TLS/HTTP: No active services or certificates observed
## Threat Assessment
- Risk Score: 25 (Low Risk)
- Abuse Confidence: Not applicable (cloud infrastructure)
- Blacklist Status: 0 listings
- Known Attacker: No
- Spam Source: No
- Tor Exit Node: No
- Active Threat Indicators: None
- Campaign Association: None detected
## Operational History
Observation history indicates 22 signal observations recorded on 2026-08-05. The IP demonstrates stable ownership with zero ownership changes and no persistent malicious activity. Geolocation signals remain consistent with Google Cloud infrastructure patterns. DNS resolution is confirmed and stable.
## Network Relationships
The IP maintains DNS associations with the googleusercontent.com domain and network associations within the GOOGL-2 network block. No anomalous relationships or external entity connections were identified.
## Neighborhood Analysis
The 136.66.181.0/24 subnet shows:
- Classification: Mostly Clean
- Abuse Density: 1 (Low)
- Subnet Risk: Inherited risk of 2 (Low)
- Total Siblings: 1
- Active Siblings: 1
- Threat Siblings: 1 (isolated indicator)
## Recommended Actions
Based on the low-risk profile and legitimate cloud infrastructure classification, no blocking or mitigation actions are recommended. The IP is identified as Google Cloud Platform infrastructure with standard operational characteristics.
Classification: Legitimate Cloud Infrastructure – Monitor for any anomalous behavior patterns.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Google LLC |
| ASN | AS396982 |
| Network Name | GOOGL-2 |
| CIDR Block | 136.64.0.0/11 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 0.181.66.136.bc.googleusercontent.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 0.181.66.136.bc.googleusercontent.com |
🔐 DNS Hygiene
| Hygiene Score | 100% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| 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 | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| 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 | 31% | 2 | 4 |
| routing | 17% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 26% | 10 | 16 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-21 19:02:45 UTC |
| Last Seen | 2026-08-12 16:08:05 UTC |
| Profile Built | 2026-08-12 16:37:17 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 31 |
Full dossier details are available via our API.