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.
- Baseline (neutral) 65
- Long-established allocation (21y) +6
- Has a reverse-DNS (PTR) record +5
- Enterprise allocation +4
- Trust score 80 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
First and last addresses in 87.51.208.0/20
87.51.208.0/20 runs from 87.51.208.0 to 87.51.223.255.
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 87.48.0.0/13.
Frequently Asked Questions
What is 87.51.208.0/20?
87.51.208.0/20 is a CIDR network block containing 4,096 IPv4 addresses (from 87.51.208.0 to 87.51.223.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 87.51.208.0/20 network?
The 87.51.208.0/20 range is allocated to TDC Holding A/S and announced via AS3292 from Denmark.
