183.81.100 is a class C of IPs

Sample IPs from the class C 183.81.100

183.81.100.254	View precise location of 183.81.100.254 on the map!
183.81.100.152	View precise location of 183.81.100.152 on the map!
183.81.100.170	View precise location of 183.81.100.170 on the map!
183.81.100.250	View precise location of 183.81.100.250 on the map!
183.81.100.24	View precise location of 183.81.100.24 on the map!
183.81.100.24	View precise location of 183.81.100.24 on the map!
183.81.100.8	View precise location of 183.81.100.8 on the map!
183.81.100.151	View precise location of 183.81.100.151 on the map!
183.81.100.236	View precise location of 183.81.100.236 on the map!
183.81.100.7	View precise location of 183.81.100.7 on the map!
183.81.100.222	View precise location of 183.81.100.222 on the map!

10 Random IPs

177.116.135.87	Find precise map location of 177.116.135.87
208.222.131.22	Find precise map location of 208.222.131.22
125.253.237.141	Find precise map location of 125.253.237.141
118.224.38.78	Find precise map location of 118.224.38.78
174.24.246.186	Find precise map location of 174.24.246.186
61.154.103.251	Find precise map location of 61.154.103.251
99.156.162.236	Find precise map location of 99.156.162.236
89.24.150.148	Find precise map location of 89.24.150.148
54.86.188.100	Find precise map location of 54.86.188.100
249.156.105.132	Find precise map location of 249.156.105.132
233.61.63.144	Find precise map location of 233.61.63.144

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