AS4755 121.244.128.0/21 CIDR and IP Range Summary.ASN: 4755 - Tata Communications Formerly VSNL is Leading ISPHost Count: 2046Addressable IPs: 2048121.244.128.0/24121.244.129.0/24121.244.130.0/24121.244.131.0/24121.244.132.0/24121.244.133.0/24121.244.134.0/24121.244.135.0/24