AS20172 199.7.72.0/21 CIDR and IP Range Summary.ASN: 20172 - Verisign Global Registry ServicesHost Count: 2046Addressable IPs: 2048199.7.72.0/24199.7.73.0/24199.7.74.0/24199.7.75.0/24199.7.76.0/24199.7.77.0/24199.7.78.0/24199.7.79.0/24