AS13 144.105.24.0/21 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 2046Addressable IPs: 2048144.105.24.0/24144.105.25.0/24144.105.26.0/24144.105.27.0/24144.105.28.0/24144.105.29.0/24144.105.30.0/24144.105.31.0/24