AS6878 164.18.72.0/21 CIDR and IP Range Summary.ASN: 6878 - T-Systems International GmbHHost Count: 2046Addressable IPs: 2048164.18.72.0/24164.18.73.0/24164.18.74.0/24164.18.75.0/24164.18.76.0/24164.18.77.0/24164.18.78.0/24164.18.79.0/24