186.154.138.61
INTEL BRIEFING: 186.154.138.61
Date: 2026-07-24
Classification: Moderate Risk (40/100)
Status: Active Monitoring
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OWNERSHIP & GEOLOCATION
IP 186.154.138.61 belongs to ASN 19429 (ETB - Colombia), a Colombian telecommunications operator serving the Bogotá region. The IP is allocated within the 186.154.0.0/16 block under LACNIC. Geolocation data consistently identifies the source as Bogotá, Colombia, with an 800km accuracy radius. Reverse DNS resolves to dynamic-186-154-138-61.dynamic.etb.net.co, confirming dynamic residential assignment.
NETWORK CLASSIFICATION
The IP is classified as "Firewalled / No Services." No open ports, TLS certificates, or HTTP services were detected during probing. The IP is not a Tor exit node, VPN, proxy, CDN, cloud service, or hosting provider. Control plane analysis indicates route instability with the 186.154.136.0/22 prefix.
THREAT INDICATORS
Current threat profile shows no malicious activity. The IP is not listed on known attacker feeds, does not appear as a spam source, and has zero blacklists. Threat observation count remains at zero. No known campaigns or certificate matches were identified.
DNS REPUTATION
The IP maintains 2 listings across 8 total DNSBLs. DNSSEC validation is valid. No email authentication (SPF/DMARC) records are associated with the reverse DNS hostname.
SUBNET ANALYSIS
The /24 subnet (186.154.138.0/24) contains a single active IP with zero abuse density. No threat siblings detected. Subnet classification is clean with inherited risk score of 0.
OBSERVATION HISTORY
Sixteen signals observed since 2026-07-24. Historical data shows consistent subnet classification as "clean" with zero abuse density. No ownership changes recorded. No persistent malicious behavior observed. Geographic inference remains stable at Bogotá coordinates (4.57, -74.3).
RELATIONSHIPS
Nine relationships identified: multiple DNS associations to dynamic-186-154-138-61.dynamic.etb.net.co and same-network links to the 186.154.0.0/16 block. No external organization or hostname relationships beyond the ISP block.
RECOMMENDATION
No blocking required. IP exhibits characteristics of legitimate residential ISP traffic from ETB Colombia. Monitor for behavioral anomalies, but current profile indicates benign activity.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | ETB - Colombia |
| ASN | AS19429 |
| Network Name | 186.154.0.0 - 186.154.255.255 |
| CIDR Block | 186.154.0.0/16 |
| RIR | LACNIC |
| Country | CO |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | dynamic-186-154-138-61.dynamic.etb.net.co |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | dynamic-186-154-138-61.dynamic.etb.net.co |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS19429 |
| Network Prefix | 186.154.136.0/22 |
| 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 | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-08 13:02:51 UTC |
| Last Seen | 2026-08-27 01:14:04 UTC |
| Profile Built | 2026-08-29 06:41:35 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 186.154.138.61
Who owns the IP address 186.154.138.61?
186.154.138.61 is registered to ETB - Colombia. The address falls within the 186.154.0.0/16 network block. Registration is held at LACNIC.
Where is 186.154.138.61 located?
Geolocation data places 186.154.138.61 in Bogotá, Bogota D.C., Colombia. The local time zone is America/Bogota. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 186.154.138.61 malicious or safe?
186.154.138.61 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 186.154.138.61?
The reverse DNS (PTR) record for 186.154.138.61 is dynamic-186-154-138-61.dynamic.etb.net.co. This hostname is forward-confirmed, meaning it resolves back to the same address.