AS13 144.101.144.0/21 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 2046Addressable IPs: 2048144.101.144.0/24144.101.145.0/24144.101.146.0/24144.101.147.0/24144.101.148.0/24144.101.149.0/24144.101.150.0/24144.101.151.0/24