AtSameIP
Find all websites hosted on the same IP-address
AtSameIP | Whois | My IP
Find whois information for a domain or IP address:

 include Google map
 do not ignore subdomain for whois

Information about IP 103.23.135.172

Location: Myanmar Myanmar.
Latitude: 21; Longitude: 96.
(IP Location by MaxMind)

Whois Information for ugame.vn

This TLD has no whois server, but you can access the whois database at
http://www.vnnic.vn/en