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CIDR
/20 · 4.1K IPs
ASN
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
Reverse DNS
cglab.informatik.w-hs.de
Last scanned 1 days 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.

90/100
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)
cg.ik.w-hs.de
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
28800 s
Reverse DNS last checked
2026-10-06 16:27 UTC
Forward DNS last checked
2026-10-06 16:27 UTC
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.

Domains hosted

as of 2026-10-04 UTC

1

Registrable domains (like example.com) with at least one name resolving to this IP — counted once a week from issued.live's DNS snapshot.

Domain data provided by issued.live — for full details visit https://issued.live/pricing

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.

Reverse-DNS changes between Oct 6, 2026 and Oct 6, 2026 were not recorded; the current PTR is shown from its earliest retained observation.

  1. cg.ik.w-hs.de — since at least Oct 6, 2026 → present
  2. cglab.informatik.w-hs.de — Oct 6, 2026 → Oct 6, 2026
  3. *.cg.ik.w-hs.de — Oct 4, 2026 → Oct 6, 2026
  4. cglab.informatik.w-hs.de — Oct 3, 2026 → Oct 4, 2026
  5. cg.ik.w-hs.de — Oct 2, 2026 → Oct 3, 2026
  6. *.cg.ik.w-hs.de — Oct 1, 2026 → Oct 2, 2026
  7. cglab.informatik.w-hs.de — Sep 29, 2026 → Oct 1, 2026
  8. *.cg.ik.w-hs.de — Sep 29, 2026 → Sep 29, 2026
  9. cglab.informatik.w-hs.de — Sep 28, 2026 → Sep 29, 2026
  10. cg.ik.w-hs.de — Sep 27, 2026 → Sep 28, 2026
  11. *.cg.ik.w-hs.de — Aug 25, 2026 → Sep 27, 2026
  12. cglab.informatik.w-hs.de — Aug 24, 2026 → Aug 25, 2026
  13. *.cg.ik.w-hs.de — Aug 19, 2026 → Aug 24, 2026
  14. cglab.informatik.w-hs.de — Aug 18, 2026 → Aug 19, 2026
  15. cg.ik.w-hs.de — Aug 18, 2026 → Aug 18, 2026
  16. *.cg.ik.w-hs.de — Jul 10, 2026 → Aug 18, 2026
  17. cglab.informatik.w-hs.de — Jun 4, 2026 → Jul 10, 2026

Network Allocation for 193.175.86.140

CIDR range
193.175.80.0/20
IP range (int)
3,249,491,968 — 3,249,496,063
Prefix length
/20
Organization
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
ASN
AS680
ASN name
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
Location
Castrop-Rauxel, North Rhine Westphalia, Germany
Coordinates
51.550500, 7.317000
Accuracy radius
10 km
Postal code
44579
Regional Internet Registry
RIPE
Allocated
1993-12-29
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-10-06 04:09:17

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

Announced prefix
Origin AS
Announcement samples
10,789
Last seen
2026-10-07 01:33:21

RIR Ownership History

Atom feed ⇲

Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours, for ranges that have contained this IP.

Date Event From To
2026-05-10 New Allocation — DE

See the full history for 193.174.0.0/15.

Frequently Asked Questions

Who owns 193.175.86.140?

193.175.86.140 is allocated to Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. (AS680), registered in Castrop-Rauxel, Germany.

Where is 193.175.86.140 located?

The geolocation for 193.175.86.140 maps to Castrop-Rauxel, Germany 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 193.175.86.140 on?

193.175.86.140 belongs to the 193.175.80.0/20 network block announced by AS680. This range contains 4,096 addresses.

Does 193.175.86.140 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: 2026-10-06 15:57:44 UTC
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