IPTables show it all! Show those interfaces!

Instead of iptables -L run iptables -L -v

i[root@s3 ~]# iptables -L -v
Chain INPUT (policy DROP 6 packets, 408 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT icmp — any any anywhere anywhere icmp echo-reply
74 8345 ACCEPT tcp — ens224 any anywhere anywhere tcp dpt:ssh state NEW,ESTABLISHED
0 0 ACCEPT tcp — ens192 any anywhere anywhere tcp dpt:https
0 0 ACCEPT tcp — ens192 any anywhere anywhere tcp dpt:http
622 73939 ACCEPT tcp — ens224 any 10.0.0.0/8 anywhere
2 209 ACCEPT all — ens224 any anywhere anywhere
0 0 ACCEPT all — ens224 any anywhere anywhere

Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
668 88096 ACCEPT all — any any anywhere anywhere
0 0 ACCEPT all — any any anywhere anywhere state RELATED,ESTABLISHED