get-ipv4-by-asn.sh
Posted by Sander ‘dsc’ Ferdinand under misc with tag(s) reconnaissance bash tools

Which ipv4 addresses belong to a given ASN? Use the following script:

#!/bin/bash
for asn in AS51468 AS37061 AS198810 AS39513; 
    do $(for range in $(echo $(whois -h whois.radb.net -- "-i origin $asn" | grep -Eo "([0-9.]+){4}/[0-9]+") | sed ':a;N;$!ba;s/\n/ /g'); 
        do prips $range >> ipv4.out; 
    done); 
done
  • Requires: apt-get install prips
  • Results will be appended to ipv4.out
  • Github Gist