Use !asn to see information for an Internet AutonomousSystem. Autonomous System Numbers (ASNs) are used in the Border GatewayProtocol (BGP) to identify an IP network managed or connected to theInternet by a single organization.
Usually, you do not need to prefix an ASN with !asn.
Add the string siblings at the end of your query to seeother Autonomous Systems registered by the same organization, if any.