AS4052 144.198.56.0/21 CIDR and IP Range Summary.ASN: 4052 - Rovi CorporationHost Count: 2046Addressable IPs: 2048144.198.56.0/24144.198.57.0/24144.198.58.0/24144.198.59.0/24144.198.60.0/24144.198.61.0/24144.198.62.0/24144.198.63.0/24