ASN (Autonomous System Number)
An identifier for a network on the internet. ASN lookup reveals whether a signup IP belongs to a datacenter, VPN, or residential ISP, a strong bot signal.
Why it matters for email security
Understanding asn (autonomous system number) helps you build signup flows that resist fake accounts, disposable inboxes and automated abuse. VeriShield Edge operationalizes this signal as part of its transparent 0-100 fraud score.
Related concepts
Explore the full glossary or the domain directory to see these signals applied to real domains.