❯ hfinder -h
usage: hfinder [-h] [-c CIDR] [-a ASN] [--hosts] [--fqdn] [--filter FILTER]

Find hostnames from ASN or CIDR - Robtex x BGP.HE

options:
  -h, --help       show this help message and exit
  -c CIDR          CIDR(s) (Single or multiple separated by commas - Ex: 192.168.0.0/24 or 192.168.0.0/24,192.168.1.0/24)
  -a ASN           ASN(s) (Single or multiple separated by commas - Ex: AS1234 or AS1234,AS4561)
  --hosts          Generate /etc/hosts like file
  --fqdn           Only display found FQDN
  --filter FILTER  Filter FQDN against regex (Ex: ^.*example\.org$)