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CIDR
/21 · 2.0K IPs
ASN
Croatian Academic and Research Network
Reverse DNS
No PTR record
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.

76/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 31.147.208.21

CIDR range
31.147.208.0/21
IP range (int)
529,780,736 — 529,782,783
Prefix length
/21
Organization
Croatian Academic and Research Network
ASN
AS2108
ASN name
Croatian Academic and Research Network
Location
Mošćenica, Sisak Moslavina County, Croatia
Coordinates
45.438600, 16.365900
Accuracy radius
50 km
Postal code
44250
Regional Internet Registry
RIPE
Allocated
2011-02-10
Data source(s)
maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
Last updated
2026-06-09 06:05:50

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

Announced prefix
Origin AS
Announcement samples
5,639
Last seen
2026-07-30 01:05:37

Frequently Asked Questions

Who owns 31.147.208.21?

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

Where is 31.147.208.21 located?

The geolocation for 31.147.208.21 maps to Mošćenica, 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 31.147.208.21 on?

31.147.208.21 belongs to the 31.147.208.0/21 network block announced by AS2108. This range contains 2,048 addresses.

Does 31.147.208.21 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: 2026-07-30 00:00:15 UTC
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