AS20746 156.54.120.0/21 CIDR and IP Range Summary.ASN: 20746 - Telecom Italia S.p.A.Host Count: 2046Addressable IPs: 2048156.54.120.0/24156.54.121.0/24156.54.122.0/24156.54.123.0/24156.54.124.0/24156.54.125.0/24156.54.126.0/24156.54.127.0/24