AS39138 31.172.48.0/20 CIDR and IP Range Summary.ASN: 39138 - rrbone GmbHHost Count: 4094Addressable IPs: 409631.172.48.0/2431.172.49.0/2431.172.50.0/2431.172.51.0/2431.172.52.0/2431.172.53.0/2431.172.54.0/2431.172.55.0/2431.172.56.0/2431.172.57.0/2431.172.58.0/2431.172.59.0/2431.172.60.0/2431.172.61.0/2431.172.62.0/2431.172.63.0/24