AS18566 64.81.216.0/21 CIDR and IP Range Summary.ASN: 18566 - GTTHost Count: 2046Addressable IPs: 204864.81.216.0/2464.81.217.0/2464.81.218.0/2464.81.219.0/2464.81.220.0/2464.81.221.0/2464.81.222.0/2464.81.223.0/24