AS23724 119.57.128.0/21 CIDR and IP Range Summary.ASN: 23724 - IDC China Telecommunications CorporationHost Count: 2046Addressable IPs: 2048119.57.128.0/24119.57.129.0/24119.57.130.0/24119.57.131.0/24119.57.132.0/24119.57.133.0/24119.57.134.0/24119.57.135.0/24