AS21056 87.247.232.0/21 CIDR and IP Range Summary.ASN: 21056 - Vianova S.p.AHost Count: 2046Addressable IPs: 204887.247.232.0/2487.247.233.0/2487.247.234.0/2487.247.235.0/2487.247.236.0/2487.247.237.0/2487.247.238.0/2487.247.239.0/24