ASN Lookup Tool

ASN / RPKI validity / BGP stats / IPv4v6 / Prefix / ASPath / Organization / IP reputation & geolocation lookup tool / Web traceroute server.

Grab the code here at

On a Mac you will need ipcalc, aha, mtr and some other prerequisites, install with homebrew.

brew install bash coreutils curl whois mtr jq ipcalc grepcidr nmap aha && brew link mtr

(A path may need to be added to /usr/local/sbin in /etc/paths)

$ asn -n
$ asn
$ asn 5555 (using asn)
$ asn -d (detailed trace)