83.99.4 is a class C of IPs

Sample IPs from the class C 83.99.4

83.99.4.186	View precise location of 83.99.4.186 on the map!
83.99.4.34	View precise location of 83.99.4.34 on the map!
83.99.4.128	View precise location of 83.99.4.128 on the map!
83.99.4.115	View precise location of 83.99.4.115 on the map!
83.99.4.224	View precise location of 83.99.4.224 on the map!
83.99.4.168	View precise location of 83.99.4.168 on the map!
83.99.4.96	View precise location of 83.99.4.96 on the map!
83.99.4.90	View precise location of 83.99.4.90 on the map!
83.99.4.88	View precise location of 83.99.4.88 on the map!
83.99.4.141	View precise location of 83.99.4.141 on the map!
83.99.4.186	View precise location of 83.99.4.186 on the map!

10 Random IPs

7.174.84.84	Find precise map location of 7.174.84.84
140.22.180.57	Find precise map location of 140.22.180.57
87.90.157.76	Find precise map location of 87.90.157.76
165.247.230.205	Find precise map location of 165.247.230.205
51.144.208.236	Find precise map location of 51.144.208.236
72.78.250.194	Find precise map location of 72.78.250.194
188.111.160.24	Find precise map location of 188.111.160.24
71.71.74.93	Find precise map location of 71.71.74.93
141.35.170.179	Find precise map location of 141.35.170.179
206.137.182.120	Find precise map location of 206.137.182.120
202.110.189.37	Find precise map location of 202.110.189.37

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