Get ASN from ip address and then create ipset with all IP4/6 prefix associated with ASN

ipasn-ipset.sh

#!/usr/bin/env bash
[[ -v 1 ]] && IP=$1 || { echo "Please enter ip address"; exit 1; }

ASNS=$(curl -s https://stat.ripe.net/data/network-info/data.json?resource=$IP | jq -r .data.asns[])

for asn in $ASNS; do 
    echo "-i origin AS${asn}" | nc whois.radb.net 43 | tee >(grep '^route6:' | sed 's/.*\s\([abcdef0-9:\/]*\)/\1/' >> as${asn}_route6) >(grep '^route:' | sed 's/.*\s\([-0-9\.\/]*\)/\1/' >> as${asn}_route4) 1>/dev/null
done 
ipset create as${asn}_route4 nethash -exist
ipset create as${asn}_route6 nethash family inet6 -exist
while read ip;do ipset add as${asn}_route4 $ip -exist;done < ./as${asn}_route4
while read ip;do ipset add as${asn}_route6 $ip -exist;done < ./as${asn}_route6
ipset list -t as${asn}_route6
ipset list -t as${asn}_route4