AS6453 63.243.200.0/21 CIDR and IP Range Summary.ASN: 6453 - Tata Communications (America) IncHost Count: 2046Addressable IPs: 204863.243.200.0/2463.243.201.0/2463.243.202.0/2463.243.203.0/2463.243.204.0/2463.243.205.0/2463.243.206.0/2463.243.207.0/24