AS4637 125.252.72.0/21 CIDR and IP Range Summary.ASN: 4637 - Telstra GlobalHost Count: 2046Addressable IPs: 2048125.252.72.0/24125.252.73.0/24125.252.74.0/24125.252.75.0/24125.252.76.0/24125.252.77.0/24125.252.78.0/24125.252.79.0/24