AS393423 74.221.232.0/21 CIDR and IP Range Summary.ASN: 393423 - NTT Global Data Centers Americas Inc.Host Count: 2046Addressable IPs: 204874.221.232.0/2474.221.233.0/2474.221.234.0/2474.221.235.0/2474.221.236.0/2474.221.237.0/2474.221.238.0/2474.221.239.0/24