AS6453 66.198.56.0/21 CIDR and IP Range Summary.ASN: 6453 - Tata Communications (America) IncHost Count: 2046Addressable IPs: 204866.198.56.0/2466.198.57.0/2466.198.58.0/2466.198.59.0/2466.198.60.0/2466.198.61.0/2466.198.62.0/2466.198.63.0/24