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CIDR
/21 · 2.0K IPs
ASN
Vodafone Czech Republic a.s.
Reverse DNS
mail.qt.cz
Last scanned 19 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.

83/100
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)
mail.qt.cz
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
3600 s
Reverse DNS last checked
2026-09-30 10:53 UTC
Forward DNS last checked
2026-09-30 10:53 UTC

Forward DNS records for mail.qt.cz

TypeValuePriorityTTL
A 90.176.236.253 — 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. mail.qt.cz — Sep 29, 2026 → present
  2. 86-49-172-85.apsobol.com — Sep 28, 2026 → Sep 29, 2026
  3. mail.qt.cz — Sep 26, 2026 → Sep 28, 2026
  4. 86-49-172-85.apsobol.com — Sep 25, 2026 → Sep 26, 2026
  5. mail.qt.cz — Aug 25, 2026 → Sep 25, 2026
  6. 86-49-172-85.apsobol.com — Aug 24, 2026 → Aug 25, 2026
  7. mail.qt.cz — Aug 18, 2026 → Aug 24, 2026
  8. 86-49-172-85.apsobol.com — Jul 3, 2026 → Aug 18, 2026
  9. mail.qt.cz — Jun 30, 2026 → Jul 3, 2026
  10. 86-49-172-85.apsobol.com — Jun 20, 2026 → Jun 30, 2026
  11. mail.qt.cz — Jun 12, 2026 → Jun 20, 2026
  12. 86-49-172-85.apsobol.com — Jun 11, 2026 → Jun 12, 2026
  13. mail.qt.cz — Jun 2, 2026 → Jun 11, 2026
  14. 86-49-172-85.apsobol.com — Jun 2, 2026 → Jun 2, 2026

Network Allocation for 86.49.172.85

CIDR range
86.49.168.0/21
IP range (int)
1,446,094,848 — 1,446,096,895
Prefix length
/21
Organization
Vodafone Czech Republic a.s.
ASN
AS16019
ASN name
Vodafone Czech Republic a.s.
Location
Kunovice, Zl N, Czechia
Coordinates
49.050600, 17.465000
Accuracy radius
5 km
Postal code
686 04
Regional Internet Registry
RIPE
Allocated
2005-04-21
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-09-30 05:22:59

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

Announced prefix
Origin AS
Announcement samples
1,522
Last seen
2026-09-30 12:17:50

Frequently Asked Questions

Who owns 86.49.172.85?

86.49.172.85 is allocated to Vodafone Czech Republic a.s. (AS16019), registered in Kunovice, Czechia.

Where is 86.49.172.85 located?

The geolocation for 86.49.172.85 maps to Kunovice, 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 86.49.172.85 on?

86.49.172.85 belongs to the 86.49.168.0/21 network block announced by AS16019. This range contains 2,048 addresses.

Does 86.49.172.85 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: 2026-09-30 06:52:18 UTC
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