Host Analysis for 221.231.81.243:
IP address 221.231.81.243 is located within an IP block ranging from 221.231.16.0 to 221.231.99.255 with CIDR 221.231.16.0/18 and netmask 255.255.172.0. According to a DNS lookup, the host name attributable to this IP is 221.231.81.243. Other information about this IP block suggests that users of 221.231.81.243 are in the vicinity of Yancheng, Jiangsu, CN, located at 33.386° latitude, 120.125° longitude (indicated on the map to the right), and are users of an ISP called Asia Pacific Network Information Centre. The ZIP code from this locale is 224001, and the time zone is Asia/Shanghai.
We have further analyzed this IP address and found that a domain is mapped to it: gxrlzy.com. This suggests that the IP address is being used by a public server (rather than an end user or a private server) to serve web pages or other app content.