AS23881 45.121.192.0/21 CIDR and IP Range Summary.ASN: 23881 - UDomain Web Hosting Company LtdHost Count: 2046Addressable IPs: 204845.121.192.0/2445.121.193.0/2445.121.194.0/2445.121.195.0/2445.121.196.0/2445.121.197.0/2445.121.198.0/2445.121.199.0/24