165.81.187 is a class C of IPs

Sample IPs from the class C 165.81.187

165.81.187.3	View precise location of 165.81.187.3 on the map!
165.81.187.240	View precise location of 165.81.187.240 on the map!
165.81.187.130	View precise location of 165.81.187.130 on the map!
165.81.187.85	View precise location of 165.81.187.85 on the map!
165.81.187.24	View precise location of 165.81.187.24 on the map!
165.81.187.170	View precise location of 165.81.187.170 on the map!
165.81.187.240	View precise location of 165.81.187.240 on the map!
165.81.187.53	View precise location of 165.81.187.53 on the map!
165.81.187.103	View precise location of 165.81.187.103 on the map!
165.81.187.67	View precise location of 165.81.187.67 on the map!
165.81.187.7	View precise location of 165.81.187.7 on the map!

10 Random IPs

139.65.165.187	Find precise map location of 139.65.165.187
206.226.27.239	Find precise map location of 206.226.27.239
229.241.23.165	Find precise map location of 229.241.23.165
230.73.240.150	Find precise map location of 230.73.240.150
215.82.190.83	Find precise map location of 215.82.190.83
248.14.194.20	Find precise map location of 248.14.194.20
227.89.189.164	Find precise map location of 227.89.189.164
31.250.20.3	Find precise map location of 31.250.20.3
30.186.164.169	Find precise map location of 30.186.164.169
137.247.19.57	Find precise map location of 137.247.19.57
180.194.101.241	Find precise map location of 180.194.101.241

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