AS6453 216.6.16.0/21 CIDR and IP Range Summary.ASN: 6453 - Tata Communications (America) IncHost Count: 2046Addressable IPs: 2048216.6.16.0/24216.6.17.0/24216.6.18.0/24216.6.19.0/24216.6.20.0/24216.6.21.0/24216.6.22.0/24216.6.23.0/24