# 151.252.242.121 — IP Intelligence Summary

151.252.242.121 is an IPv4 address announced by AS34594, with approximate network location Osijek, Croatia. Its reverse DNS name is 151-252-242-121.dsl.optinet.hr. As of November 6, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/151.252.242.121
- Last updated: 2026-11-06

## Ownership

- Organization: OT - OPTIMA TELEKOM d.d.
- Network name: HR-OPTIMA
- Allocated block: 151.252.240.0/21
- ASN: AS34594 (https://ipdebrief.com/asn/34594)
- Regional registry: RIPE
- Registered holder: OT - OPTIMA TELEKOM d.d.
- Routing operator: —
- Network registration country: HR
- Registrant address country: —

## Location

- City: Osijek
- Region: County of Osijek-Baranja
- Country: Croatia
- Time zone: —

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

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- 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

- 151-252-242-121.dsl.optinet.hr
- Forward-confirmed: no

## DNS posture

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

- spf: Not checked
- dmarc: Not checked
- fcrDns: Not checked
- dnssec: Not checked
- caa: Not checked

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Source: IPDebrief, "151.252.242.121 IP intelligence", https://ipdebrief.com/151.252.242.121, updated 2026-11-06. Assessments are probabilistic.