AS37963 39.97.192.0/21 CIDR and IP Range Summary.ASN: 37963 - Hangzhou Alibaba Advertising Co. Ltd.Host Count: 2046Addressable IPs: 204839.97.192.0/2439.97.193.0/2439.97.194.0/2439.97.195.0/2439.97.196.0/2439.97.197.0/2439.97.198.0/2439.97.199.0/24