AS201011 83.142.80.0/21 CIDR and IP Range Summary.ASN: 201011 - Core-Backbone GmbHHost Count: 2046Addressable IPs: 204883.142.80.0/2483.142.81.0/2483.142.82.0/2483.142.83.0/2483.142.84.0/2483.142.85.0/2483.142.86.0/2483.142.87.0/24