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CIDR
/21 · 2.0K IPs
ASN
Croatian Academic and Research Network
Reverse DNS
dns1.ztm.hr
Last scanned 1 hr ago
Blocklisted
Checking…
Scanning blocklists

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

86/100
Trusted
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
dns1.ztm.hr
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
10800 s
Reverse DNS last checked
2026-07-22 09:01 UTC
Forward DNS last checked
2026-07-22 09:01 UTC

Forward DNS records for dns1.ztm.hr

TypeValuePriorityTTL
A 161.53.175.5 172800s
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 161.53.175.5

CIDR range
161.53.168.0/21
IP range (int)
2,704,648,192 — 2,704,650,239
Prefix length
/21
Organization
Croatian Academic and Research Network
ASN
AS2108
ASN name
Croatian Academic and Research Network
Location
Split, Split Dalmatia County, Croatia
Coordinates
43.509800, 16.441100
Accuracy radius
200 km
Postal code
21000
Regional Internet Registry
ARIN
Allocated
1993-09-01
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-21 04:09:01

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
5,089
Last seen
2026-07-22 09:59:04

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 RIR Transfer arin ripe

See the full history for 161.53.0.0/16.

Frequently Asked Questions

Who owns 161.53.175.5?

161.53.175.5 is allocated to Croatian Academic and Research Network (AS2108), registered in Split, Croatia.

Where is 161.53.175.5 located?

The geolocation for 161.53.175.5 maps to Split, Croatia based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 161.53.175.5 on?

161.53.175.5 belongs to the 161.53.168.0/21 network block announced by AS2108. This range contains 2,048 addresses.

Does 161.53.175.5 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Last updated: 2026-07-22 10:14:54 UTC
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