AS13 158.9.32.0/20 CIDR and IP Range Summary.ASN: 13 - Headquarters USAISCHost Count: 4094Addressable IPs: 4096158.9.32.0/24158.9.33.0/24158.9.34.0/24158.9.35.0/24158.9.36.0/24158.9.37.0/24158.9.38.0/24158.9.39.0/24158.9.40.0/24158.9.41.0/24158.9.42.0/24158.9.43.0/24158.9.44.0/24158.9.45.0/24158.9.46.0/24158.9.47.0/24