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 (23y) +6
- Has a reverse-DNS (PTR) record +5
- Mobile allocation +2
- Trust score 78 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
First 256 of 512 IP addresses in 221.120.42.0/23
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Frequently Asked Questions
What is 221.120.42.0/23?
221.120.42.0/23 is a CIDR network block containing 512 IPv4 addresses (from 221.120.42.0 to 221.120.43.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 221.120.42.0/23 network?
The 221.120.42.0/23 range is allocated to Mobile Business Group and announced via AS17421 from Taiwan.