AS45773 121.52.144.0/20 CIDR and IP Range Summary.ASN: 45773 - PERN AS Content Servie Provider Islamabad PakistanHost Count: 4094Addressable IPs: 4096121.52.144.0/24121.52.145.0/24121.52.146.0/24121.52.147.0/24121.52.148.0/24121.52.149.0/24121.52.150.0/24121.52.151.0/24121.52.152.0/24121.52.153.0/24121.52.154.0/24121.52.155.0/24121.52.156.0/24121.52.157.0/24121.52.158.0/24121.52.159.0/24