131.38.66 is a class C of IPs

Sample IPs from the class C 131.38.66

131.38.66.73	View precise location of 131.38.66.73 on the map!
131.38.66.145	View precise location of 131.38.66.145 on the map!
131.38.66.218	View precise location of 131.38.66.218 on the map!
131.38.66.97	View precise location of 131.38.66.97 on the map!
131.38.66.248	View precise location of 131.38.66.248 on the map!
131.38.66.63	View precise location of 131.38.66.63 on the map!
131.38.66.106	View precise location of 131.38.66.106 on the map!
131.38.66.13	View precise location of 131.38.66.13 on the map!
131.38.66.59	View precise location of 131.38.66.59 on the map!
131.38.66.52	View precise location of 131.38.66.52 on the map!
131.38.66.241	View precise location of 131.38.66.241 on the map!

10 Random IPs

70.107.75.220	Find precise map location of 70.107.75.220
155.243.100.32	Find precise map location of 155.243.100.32
83.85.61.224	Find precise map location of 83.85.61.224
79.171.51.88	Find precise map location of 79.171.51.88
18.141.145.87	Find precise map location of 18.141.145.87
7.148.9.7	Find precise map location of 7.148.9.7
183.208.212.14	Find precise map location of 183.208.212.14
206.179.56.75	Find precise map location of 206.179.56.75
221.187.129.9	Find precise map location of 221.187.129.9
75.61.160.226	Find precise map location of 75.61.160.226
198.11.255.36	Find precise map location of 198.11.255.36

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