198.199.81 is a class C of IPs

Sample IPs from the class C 198.199.81

198.199.81.135	View precise location of 198.199.81.135 on the map!
198.199.81.4	View precise location of 198.199.81.4 on the map!
198.199.81.202	View precise location of 198.199.81.202 on the map!
198.199.81.46	View precise location of 198.199.81.46 on the map!
198.199.81.58	View precise location of 198.199.81.58 on the map!
198.199.81.122	View precise location of 198.199.81.122 on the map!
198.199.81.37	View precise location of 198.199.81.37 on the map!
198.199.81.225	View precise location of 198.199.81.225 on the map!
198.199.81.36	View precise location of 198.199.81.36 on the map!
198.199.81.181	View precise location of 198.199.81.181 on the map!
198.199.81.140	View precise location of 198.199.81.140 on the map!

10 Random IPs

32.10.9.65	Find precise map location of 32.10.9.65
186.127.158.73	Find precise map location of 186.127.158.73
237.52.64.195	Find precise map location of 237.52.64.195
221.234.4.240	Find precise map location of 221.234.4.240
16.179.51.63	Find precise map location of 16.179.51.63
107.238.234.38	Find precise map location of 107.238.234.38
133.165.96.103	Find precise map location of 133.165.96.103
35.83.240.178	Find precise map location of 35.83.240.178
73.117.192.112	Find precise map location of 73.117.192.112
191.144.84.225	Find precise map location of 191.144.84.225
79.168.236.113	Find precise map location of 79.168.236.113

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