252.21.187 is a class C of IPs

Sample IPs from the class C 252.21.187

252.21.187.168	View precise location of 252.21.187.168 on the map!
252.21.187.197	View precise location of 252.21.187.197 on the map!
252.21.187.124	View precise location of 252.21.187.124 on the map!
252.21.187.23	View precise location of 252.21.187.23 on the map!
252.21.187.47	View precise location of 252.21.187.47 on the map!
252.21.187.44	View precise location of 252.21.187.44 on the map!
252.21.187.120	View precise location of 252.21.187.120 on the map!
252.21.187.191	View precise location of 252.21.187.191 on the map!
252.21.187.56	View precise location of 252.21.187.56 on the map!
252.21.187.182	View precise location of 252.21.187.182 on the map!
252.21.187.194	View precise location of 252.21.187.194 on the map!

10 Random IPs

83.29.30.30	Find precise map location of 83.29.30.30
212.70.181.152	Find precise map location of 212.70.181.152
140.87.190.141	Find precise map location of 140.87.190.141
177.155.183.238	Find precise map location of 177.155.183.238
202.94.144.203	Find precise map location of 202.94.144.203
124.58.5.11	Find precise map location of 124.58.5.11
162.130.6.141	Find precise map location of 162.130.6.141
10.36.87.125	Find precise map location of 10.36.87.125
229.31.236.119	Find precise map location of 229.31.236.119
71.194.102.111	Find precise map location of 71.194.102.111
189.222.3.231	Find precise map location of 189.222.3.231

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