iptables block range ip

# cat /etc/iptables/rules.v4
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# Generated by xtables-save v1.8.2 on Thu Jul  9 02:55:34 2020
*filter
:INPUT ACCEPT [755:72126]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1164:142504]
-A INPUT -f -j DROP
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP
-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m tcp --dport 39000 -j ACCEPT
-A INPUT -s 185.0.0.0/8 -j DROP
-A INPUT -s 46.0.0.0/8 -j DROP
COMMIT
# Completed on Thu Jul  9 02:55:34 2020