Query Level3s IRR for prefixes advertised by an AS MACRO, in blocks short enough to not break Kibana's URL

AS Prefix Search

#!/usr/bin/env python
from __future__ import print_function # Python 2 compatibility fix
from sys import argv, exit
from subprocess import check_output

# Takes AS MACRO as single argument

prefixes = check_output(['whois -h filtergen.level3.net \
                         "ARIN::{} -searchpath=RIPE;ARIN;RADB \
                         -recurseok -warnonly"'.format(argv[1])], shell=True)
i = 0


for line in prefixes:
    print('ip_dst: "{}" OR ip_src: "{}" '.format(line, line), end="")
    i += 1
    if i > 19:
        i = 0
        print("\n\n")