AS17621 211.144.192.136/29 CIDR and IP Range Summary.ASN: 17621 - China Unicom Shanghai NetworkHost Count: 6Addressable IPs: 8 211.144.192.137211.144.192.138211.144.192.139211.144.192.140211.144.192.141211.144.192.142211.144.192.143211.144.192.144