154.18.3.138
Intelligence analysts assessed IP 154.18.3.138/32, locating the endpoint in Singapore. Routing data associated the address with Origin ASN 174 and prefix 154.18.0.0/15, though specific ownership details remained unrecorded. Network assessment determined the host was firewalled with no active open ports or services.
Threat intelligence scans returned no known attacker indicators, spam signatures, or blacklist matches. DNS analysis confirmed a PTR record for `transhybrid.demarc.cogentco.com`, but forward resolution remained unconfirmed. The asset lacked DNSSEC and CAA records.
The system assigned a reputation status of Low Risk with a risk score of 0. Data confidence was rated Very Low due to insufficient historical observations and limited signal coverage. The security team received a recommendation to Allow traffic, noting no significant risk indicators were present during the observation window.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cogent Communications, LLC |
| ASN | AS174 |
| Network Name | COGENT-154-18-16 |
| CIDR Block | 154.18.0.0/16 |
| RIR | AFRINIC |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | transhybrid.demarc.cogentco.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | transhybrid.demarc.cogentco.com |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| 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 | |||
| 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 | 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 | 2026-09-16 10:02:02 UTC |
| Last Seen | 2026-09-16 10:02:02 UTC |
| Profile Built | 2026-09-16 10:13:59 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 23 |
Full dossier details are available via our API.