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CIDR
/20 · 4.1K IPs
ASN
NetCologne Gesellschaft fur Telekommunikation mbH
Reverse DNS
static-87-79-73-237.netcologne.de
last known PTR from 3 hr ago
Blocklisted
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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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Domains hosted

as of 2026-10-04 UTC

0

issued.live saw no domain resolving to this IP in its latest weekly 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.

Reverse-DNS changes between Jun 6, 2026 and Oct 4, 2026 were not recorded; the current PTR is shown from its earliest retained observation.

  1. no PTR — since at least Oct 4, 2026 → present
  2. static-87-79-73-237.netcologne.de stable — Jun 6, 2026 → Oct 4, 2026

Network Allocation for 87.79.73.237

CIDR range
87.79.64.0/20
IP range (int)
1,464,811,520 — 1,464,815,615
Prefix length
/20
Organization
NetCologne Gesellschaft fur Telekommunikation mbH
ASN
AS8422
ASN name
NetCologne Gesellschaft fur Telekommunikation mbH
Location
Cologne, North Rhine Westphalia, Germany
Coordinates
50.930100, 6.954400
Accuracy radius
20 km
Postal code
50676
Regional Internet Registry
RIPE
Allocated
2005-05-31
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-10-04 08:45:16

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

Announced prefix
Origin AS
Announcement samples
11,814
Last seen
2026-10-05 02:04:53

Frequently Asked Questions

Who owns 87.79.73.237?

87.79.73.237 is allocated to NetCologne Gesellschaft fur Telekommunikation mbH (AS8422), registered in Cologne, Germany.

Where is 87.79.73.237 located?

The geolocation for 87.79.73.237 maps to Cologne, 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 87.79.73.237 on?

87.79.73.237 belongs to the 87.79.64.0/20 network block announced by AS8422. This range contains 4,096 addresses.

Does 87.79.73.237 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: 2026-10-04 18:37:49 UTC
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