AS13 140.153.96.0/21 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 2046Addressable IPs: 2048140.153.96.0/24140.153.97.0/24140.153.98.0/24140.153.99.0/24140.153.100.0/24140.153.101.0/24140.153.102.0/24140.153.103.0/24