# 77.48.225.21 — IP Intelligence Summary

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.

- Canonical page: https://ipdebrief.com/77.48.225.21
- Last updated: 2026-11-13

## Ownership

- Organization: Jiri MATLAS
- Network name: BRAVONET-NET
- Allocated block: 77.48.225.0/24
- ASN: AS16019 (https://ipdebrief.com/asn/16019)
- Regional registry: RIPE
- Registered holder: Jiri MATLAS
- Routing operator: VODAFONE-CZ-AS - Vodafone Czech Republic a.s., CZ
- Network registration country: CZ
- Registrant address country: —

## Location

- City: České Budějovice
- Region: South Bohemian Region
- Country: Czech Republic
- Time zone: Europe/Prague

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: yes
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (0/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- nat-21.bravonet.eu
- Forward-confirmed: yes

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- 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)

---

Source: IPDebrief, "77.48.225.21 IP intelligence", https://ipdebrief.com/77.48.225.21, updated 2026-11-13. Assessments are probabilistic.