172.113.28 is a class C of IPs

Sample IPs from the class C 172.113.28

172.113.28.134	View precise location of 172.113.28.134 on the map!
172.113.28.67	View precise location of 172.113.28.67 on the map!
172.113.28.187	View precise location of 172.113.28.187 on the map!
172.113.28.57	View precise location of 172.113.28.57 on the map!
172.113.28.37	View precise location of 172.113.28.37 on the map!
172.113.28.51	View precise location of 172.113.28.51 on the map!
172.113.28.210	View precise location of 172.113.28.210 on the map!
172.113.28.151	View precise location of 172.113.28.151 on the map!
172.113.28.89	View precise location of 172.113.28.89 on the map!
172.113.28.90	View precise location of 172.113.28.90 on the map!
172.113.28.183	View precise location of 172.113.28.183 on the map!

10 Random IPs

216.149.171.7	Find precise map location of 216.149.171.7
86.42.137.232	Find precise map location of 86.42.137.232
223.176.147.200	Find precise map location of 223.176.147.200
237.198.77.73	Find precise map location of 237.198.77.73
206.31.20.36	Find precise map location of 206.31.20.36
80.92.65.177	Find precise map location of 80.92.65.177
119.97.45.207	Find precise map location of 119.97.45.207
165.76.129.76	Find precise map location of 165.76.129.76
6.151.113.122	Find precise map location of 6.151.113.122
58.95.227.212	Find precise map location of 58.95.227.212
114.77.148.56	Find precise map location of 114.77.148.56

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