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CIDR
/20 · 4.1K IPs
ASN
O2 Czech Republic, a.s.
Reverse DNS
www.unihobby.cz
Last scanned 16 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.

85/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
www.unihobby.cz
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
86400 s
Reverse DNS last checked
2026-09-29 08:30 UTC
Forward DNS last checked
2026-09-28 12:33 UTC

Forward DNS records for www.unihobby.cz

TypeValuePriorityTTL
A 88.86.125.13 — 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.

Reverse DNS history

How this IP's reverse DNS (PTR) has changed over time, from our scans.

This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.

  1. www.unihobby.cz — Sep 28, 2026 → present
  2. eshop.unihobby.cz — Sep 27, 2026 → Sep 28, 2026
  3. www.unihobby.cz — Aug 25, 2026 → Sep 27, 2026
  4. eshop.unihobby.cz — Aug 24, 2026 → Aug 25, 2026
  5. www.unihobby.cz — Aug 18, 2026 → Aug 24, 2026
  6. eshop.unihobby.cz — Aug 17, 2026 → Aug 18, 2026
  7. www.unihobby.cz — Jul 10, 2026 → Aug 17, 2026
  8. eshop.unihobby.cz — Jun 20, 2026 → Jul 10, 2026
  9. www.unihobby.cz — Jun 16, 2026 → Jun 20, 2026
  10. eshop.unihobby.cz — Jun 14, 2026 → Jun 16, 2026
  11. www.unihobby.cz — Jun 12, 2026 → Jun 14, 2026
  12. eshop.unihobby.cz — Jun 11, 2026 → Jun 12, 2026

Network Allocation for 90.183.120.45

CIDR range
90.183.112.0/20
IP range (int)
1,521,971,200 — 1,521,975,295
Prefix length
/20
Organization
O2 Czech Republic, a.s.
ASN
AS5610
ASN name
O2 Czech Republic, a.s.
Location
Prague, Prague, Czechia
Coordinates
50.076600, 14.446400
Accuracy radius
100 km
Postal code
120 00
Regional Internet Registry
RIPE
Allocated
2006-09-17
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-09-29 04:07:30

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

Announced prefix
Origin AS
Announcement samples
27,616
Last seen
2026-09-29 21:25:48

Frequently Asked Questions

Who owns 90.183.120.45?

90.183.120.45 is allocated to O2 Czech Republic, a.s. (AS5610), registered in Prague, Czechia.

Where is 90.183.120.45 located?

The geolocation for 90.183.120.45 maps to Prague, Czechia 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 90.183.120.45 on?

90.183.120.45 belongs to the 90.183.112.0/20 network block announced by AS5610. This range contains 4,096 addresses.

Does 90.183.120.45 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: 2026-09-29 05:21:31 UTC
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