AS13237 81.209.136.0/21 CIDR and IP Range Summary.ASN: 13237 - euNetworks GmbHHost Count: 2046Addressable IPs: 204881.209.136.0/2481.209.137.0/2481.209.138.0/2481.209.139.0/2481.209.140.0/2481.209.141.0/2481.209.142.0/2481.209.143.0/24