38.10.153.243
IP Intelligence Dossier
Your IP: 216.73.217.59
🏢 Ownership & Registration
| Organization | Cogent Communications, LLC |
| ASN | AS272447 |
| Network Name | COGENT-A |
| CIDR Block | 38.0.0.0/8 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 38-10-153-243.worldfibra.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 38-10-153-243.worldfibra.com.br |
🔐 DNS Hygiene
| Hygiene Score | 0% (None) |
| SPF | 0/2 domains |
| DMARC | 0/2 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ 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
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS272447 |
| Network Prefix | 38.10.153.0/24 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-10 01:49:27 UTC |
| Last Seen | 2026-10-08 01:18:16 UTC |
| Profile Built | 2026-10-08 01:18:48 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 355 |
🔍 22 signal types · 355 observations collected
This report is generated from 22+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
❓ Frequently Asked Questions About 38.10.153.243
Who owns the IP address 38.10.153.243?
38.10.153.243 is registered to Cogent Communications, LLC. The address falls within the 38.0.0.0/8 network block. Registration is held at ARIN.
Where is 38.10.153.243 located?
Geolocation data places 38.10.153.243 in São Paulo, São Paulo, Brazil. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 38.10.153.243 malicious or safe?
38.10.153.243 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 38.10.153.243?
The reverse DNS (PTR) record for 38.10.153.243 is 38-10-153-243.worldfibra.com.br. This hostname is not forward-confirmed, so it should be treated as a weak signal.
🏘️ Related IP Addresses
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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.