231.235.57 is a class C of IPs

Sample IPs from the class C 231.235.57

231.235.57.175	View precise location of 231.235.57.175 on the map!
231.235.57.117	View precise location of 231.235.57.117 on the map!
231.235.57.89	View precise location of 231.235.57.89 on the map!
231.235.57.191	View precise location of 231.235.57.191 on the map!
231.235.57.126	View precise location of 231.235.57.126 on the map!
231.235.57.225	View precise location of 231.235.57.225 on the map!
231.235.57.37	View precise location of 231.235.57.37 on the map!
231.235.57.84	View precise location of 231.235.57.84 on the map!
231.235.57.225	View precise location of 231.235.57.225 on the map!
231.235.57.171	View precise location of 231.235.57.171 on the map!
231.235.57.231	View precise location of 231.235.57.231 on the map!

10 Random IPs

165.199.164.61	Find precise map location of 165.199.164.61
120.102.73.151	Find precise map location of 120.102.73.151
60.212.11.239	Find precise map location of 60.212.11.239
90.236.116.114	Find precise map location of 90.236.116.114
106.199.151.6	Find precise map location of 106.199.151.6
17.71.3.125	Find precise map location of 17.71.3.125
138.53.24.128	Find precise map location of 138.53.24.128
226.25.73.231	Find precise map location of 226.25.73.231
97.226.236.144	Find precise map location of 97.226.236.144
168.53.18.57	Find precise map location of 168.53.18.57
177.59.184.34	Find precise map location of 177.59.184.34

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