AS3356 192.221.64.0/20 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 4094Addressable IPs: 4096192.221.64.0/24192.221.65.0/24192.221.66.0/24192.221.67.0/24192.221.68.0/24192.221.69.0/24192.221.70.0/24192.221.71.0/24192.221.72.0/24192.221.73.0/24192.221.74.0/24192.221.75.0/24192.221.76.0/24192.221.77.0/24192.221.78.0/24192.221.79.0/24