213.138.28 is a class C of IPs

Sample IPs from the class C 213.138.28

213.138.28.66	View precise location of 213.138.28.66 on the map!
213.138.28.134	View precise location of 213.138.28.134 on the map!
213.138.28.41	View precise location of 213.138.28.41 on the map!
213.138.28.79	View precise location of 213.138.28.79 on the map!
213.138.28.9	View precise location of 213.138.28.9 on the map!
213.138.28.97	View precise location of 213.138.28.97 on the map!
213.138.28.71	View precise location of 213.138.28.71 on the map!
213.138.28.237	View precise location of 213.138.28.237 on the map!
213.138.28.43	View precise location of 213.138.28.43 on the map!
213.138.28.217	View precise location of 213.138.28.217 on the map!
213.138.28.98	View precise location of 213.138.28.98 on the map!

10 Random IPs

45.63.232.46	Find precise map location of 45.63.232.46
159.173.128.242	Find precise map location of 159.173.128.242
45.198.167.156	Find precise map location of 45.198.167.156
27.136.103.43	Find precise map location of 27.136.103.43
96.249.37.46	Find precise map location of 96.249.37.46
98.166.234.32	Find precise map location of 98.166.234.32
221.16.114.95	Find precise map location of 221.16.114.95
174.16.134.186	Find precise map location of 174.16.134.186
15.66.38.49	Find precise map location of 15.66.38.49
205.161.104.20	Find precise map location of 205.161.104.20
16.147.20.187	Find precise map location of 16.147.20.187

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