# whois
Lookup which ASN an IP address belongs to
whois -h whois.cymru.com $IP_ADDRESS
Create a command alias in your preferred shell environment alias asn="whois -h whois.cymru.com"
and then use asn $IP_ADDRESS
instead.
whois -h whois.cymru.com $IP_ADDRESS
Create a command alias in your preferred shell environment alias asn="whois -h whois.cymru.com"
and then use asn $IP_ADDRESS
instead.