77.48.225.21
77.48.225.21 is an IPv4 address operated by VODAFONE-CZ-AS - Vodafone Czech Republic a.s., CZ (AS16019), with approximate network location České Budějovice, Czech Republic. It belongs to a mobile network with reverse DNS name nat-21.bravonet.eu. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Jiri MATLAS |
| ASN | AS16019 |
| Network Name | BRAVONET-NET |
| CIDR Block | 77.48.225.0/24 |
| RIR | RIPE |
| Network registration country | CZ |
| Routing operator | VODAFONE-CZ-AS - Vodafone Czech Republic a.s., CZ |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | nat-21.bravonet.eu |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | nat-21.bravonet.eu |
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.
| caa | Not found at queried name eu |
| spf | Unknown / lookup inconclusive nat-21.bravonet.eu |
| dmarc | Unknown / lookup inconclusive _dmarc.nat-21.bravonet.eu |
| dnssec | Unknown / lookup inconclusive 21.225.48.77.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive nat-21.bravonet.eu |
☁️ Network Classification
| Infrastructure | Mobile |
| 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
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS16019 |
| Network Prefix | 77.48.128.0/17 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-06 00:35:15 UTC |
| Last Seen | 2026-11-07 20:41:18 UTC |
| Profile Built | 2026-11-13 08:54:26 UTC |
| Data Freshness | Live |
| Signal Types | 13 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 77.48.225.21
Who owns the IP address 77.48.225.21?
77.48.225.21 is registered to Jiri MATLAS. The address falls within the 77.48.225.0/24 network block. Registration is held at RIPE.
Where is 77.48.225.21 located?
Geolocation data places 77.48.225.21 in České Budějovice, South Bohemian Region, 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 77.48.225.21 malicious or safe?
77.48.225.21 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 77.48.225.21?
The reverse DNS (PTR) record for 77.48.225.21 is nat-21.bravonet.eu. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 77.48.225.21 a VPN, proxy, or data center address?
77.48.225.21 is classified as a mobile network based on network ownership and behavioural analysis.