157.221.15 is a class C of IPs

Sample IPs from the class C 157.221.15

157.221.15.133	View precise location of 157.221.15.133 on the map!
157.221.15.138	View precise location of 157.221.15.138 on the map!
157.221.15.212	View precise location of 157.221.15.212 on the map!
157.221.15.244	View precise location of 157.221.15.244 on the map!
157.221.15.161	View precise location of 157.221.15.161 on the map!
157.221.15.154	View precise location of 157.221.15.154 on the map!
157.221.15.128	View precise location of 157.221.15.128 on the map!
157.221.15.66	View precise location of 157.221.15.66 on the map!
157.221.15.162	View precise location of 157.221.15.162 on the map!
157.221.15.71	View precise location of 157.221.15.71 on the map!
157.221.15.232	View precise location of 157.221.15.232 on the map!

10 Random IPs

9.224.124.57	Find precise map location of 9.224.124.57
84.169.5.168	Find precise map location of 84.169.5.168
176.5.66.60	Find precise map location of 176.5.66.60
113.90.81.84	Find precise map location of 113.90.81.84
231.220.42.157	Find precise map location of 231.220.42.157
177.68.189.101	Find precise map location of 177.68.189.101
100.59.167.194	Find precise map location of 100.59.167.194
32.72.14.30	Find precise map location of 32.72.14.30
154.227.70.134	Find precise map location of 154.227.70.134
153.31.187.112	Find precise map location of 153.31.187.112
202.235.83.148	Find precise map location of 202.235.83.148

TestURI.org is a free web-sniffer.net alternative. It alows you to send custom HTTP request and check the HTTP response.