AS3356 192.221.224.0/20 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 4094Addressable IPs: 4096192.221.224.0/24192.221.225.0/24192.221.226.0/24192.221.227.0/24192.221.228.0/24192.221.229.0/24192.221.230.0/24192.221.231.0/24192.221.232.0/24192.221.233.0/24192.221.234.0/24192.221.235.0/24192.221.236.0/24192.221.237.0/24192.221.238.0/24192.221.239.0/24