If you want to create a custom firewall based on our ASN database. Checkout the following posts:
ASN database download commands
ASN database (premium)
curl -L https://ipinfo.io/data/standard_asn.csv.gz?token=<YOUR_TOKEN> -o asn.csv.gz
IP to ASN database (open access)
curl -L https://ipinfo.io/data/free/asn.csv.gz?token=<YOUR_TOKEN> -o asn.csv.gz
IP to Country ASN database (open access)
curl -L https://ipinfo.io/data/free/country_asn.csv.gz?token=<YOUR_TOKEN> -o country_asn.csv.gz
IPinfo ASN Database Downloads