AS20746 156.54.240.0/21 CIDR and IP Range Summary.ASN: 20746 - Telecom Italia S.p.A.Host Count: 2046Addressable IPs: 2048156.54.240.0/24156.54.241.0/24156.54.242.0/24156.54.243.0/24156.54.244.0/24156.54.245.0/24156.54.246.0/24156.54.247.0/24