AS13 144.104.144.0/21 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 2046Addressable IPs: 2048144.104.144.0/24144.104.145.0/24144.104.146.0/24144.104.147.0/24144.104.148.0/24144.104.149.0/24144.104.150.0/24144.104.151.0/24