AS4052 144.198.136.0/21 CIDR and IP Range Summary.ASN: 4052 - Rovi CorporationHost Count: 2046Addressable IPs: 2048144.198.136.0/24144.198.137.0/24144.198.138.0/24144.198.139.0/24144.198.140.0/24144.198.141.0/24144.198.142.0/24144.198.143.0/24