Host Analysis for 221.143.20.101:
IP address 221.143.20.101 is located within an IP block ranging from 221.143.20.0 to 221.143.24.255 with CIDR 221.143.20.0/22 and netmask 255.255.251.0. According to a DNS lookup, the host name attributable to this IP is 221.143.20.101. Other information about this IP block suggests that users of 221.143.20.101 are in the vicinity of Seoul, Seoul-teukbyeolsi, KR, located at 37.566° latitude, 126.978° longitude (indicated on the map to the right), and are users of an ISP called SK Broadband Co Ltd. The ZIP code from this locale is 06030, and the time zone is Asia/Seoul.
We have further analyzed this IP address and found that several domain names are currently mapped to it, such as 15885251.com, 4pig.net, 881004.net, 999ing.com, and bemabio.com, among others. 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.