AS23724 220.181.48.0/21 CIDR and IP Range Summary.ASN: 23724 - IDC China Telecommunications CorporationHost Count: 2046Addressable IPs: 2048220.181.48.0/24220.181.49.0/24220.181.50.0/24220.181.51.0/24220.181.52.0/24220.181.53.0/24220.181.54.0/24220.181.55.0/24