AS17638 123.151.160.0/20 CIDR and IP Range Summary.ASN: 17638 - ASN for TIANJIN Provincial Net of CTHost Count: 4094Addressable IPs: 4096123.151.160.0/24123.151.161.0/24123.151.162.0/24123.151.163.0/24123.151.164.0/24123.151.165.0/24123.151.166.0/24123.151.167.0/24123.151.168.0/24123.151.169.0/24123.151.170.0/24123.151.171.0/24123.151.172.0/24123.151.173.0/24123.151.174.0/24123.151.175.0/24