AS4637 138.104.16.0/20 CIDR and IP Range Summary.ASN: 4637 - Telstra GlobalHost Count: 4094Addressable IPs: 4096138.104.16.0/24138.104.17.0/24138.104.18.0/24138.104.19.0/24138.104.20.0/24138.104.21.0/24138.104.22.0/24138.104.23.0/24138.104.24.0/24138.104.25.0/24138.104.26.0/24138.104.27.0/24138.104.28.0/24138.104.29.0/24138.104.30.0/24138.104.31.0/24