AS17816 112.90.40.0/21 CIDR and IP Range Summary.ASN: 17816 - China UnicomHost Count: 2046Addressable IPs: 2048112.90.40.0/24112.90.41.0/24112.90.42.0/24112.90.43.0/24112.90.44.0/24112.90.45.0/24112.90.46.0/24112.90.47.0/24