AS13 144.105.80.0/21 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 2046Addressable IPs: 2048144.105.80.0/24144.105.81.0/24144.105.82.0/24144.105.83.0/24144.105.84.0/24144.105.85.0/24144.105.86.0/24144.105.87.0/24