31.30.173.155 is an IPv4 address, with approximate network location Prague, Czech Republic. Its reverse DNS name is cst2-173-155.cust.vodafone.cz. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Unknown |
| ASN | — |
| Network Name | — |
| CIDR Block | — |
| RIR | — |
| Network registration country | — |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | cst2-173-155.cust.vodafone.cz |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | cst2-173-155.cust.vodafone.cz |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP.
DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
No specific classification
🔍 12 signal types · 12 observations collected
This report is generated from 12+ 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.
❓ Frequently Asked Questions About 31.30.173.155
Where is 31.30.173.155 located?
Geolocation data places 31.30.173.155 in Prague, Prague, Czech Republic. The local time zone is Europe/Prague. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 31.30.173.155 malicious or safe?
31.30.173.155 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 31.30.173.155?
The reverse DNS (PTR) record for 31.30.173.155 is cst2-173-155.cust.vodafone.cz. This hostname is forward-confirmed, meaning it resolves back to the same address.
