23.161.4 is a class C of IPs

Sample IPs from the class C 23.161.4

23.161.4.147	View precise location of 23.161.4.147 on the map!
23.161.4.191	View precise location of 23.161.4.191 on the map!
23.161.4.47	View precise location of 23.161.4.47 on the map!
23.161.4.5	View precise location of 23.161.4.5 on the map!
23.161.4.99	View precise location of 23.161.4.99 on the map!
23.161.4.21	View precise location of 23.161.4.21 on the map!
23.161.4.177	View precise location of 23.161.4.177 on the map!
23.161.4.209	View precise location of 23.161.4.209 on the map!
23.161.4.166	View precise location of 23.161.4.166 on the map!
23.161.4.195	View precise location of 23.161.4.195 on the map!
23.161.4.127	View precise location of 23.161.4.127 on the map!

10 Random IPs

136.214.8.219	Find precise map location of 136.214.8.219
41.156.245.81	Find precise map location of 41.156.245.81
176.235.58.233	Find precise map location of 176.235.58.233
17.164.14.121	Find precise map location of 17.164.14.121
66.107.222.163	Find precise map location of 66.107.222.163
7.41.83.156	Find precise map location of 7.41.83.156
234.213.150.188	Find precise map location of 234.213.150.188
229.74.180.61	Find precise map location of 229.74.180.61
72.89.101.226	Find precise map location of 72.89.101.226
75.112.28.89	Find precise map location of 75.112.28.89
226.161.83.162	Find precise map location of 226.161.83.162

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