99.91.80 is a class C of IPs

Sample IPs from the class C 99.91.80

99.91.80.32	View precise location of 99.91.80.32 on the map!
99.91.80.160	View precise location of 99.91.80.160 on the map!
99.91.80.121	View precise location of 99.91.80.121 on the map!
99.91.80.92	View precise location of 99.91.80.92 on the map!
99.91.80.190	View precise location of 99.91.80.190 on the map!
99.91.80.212	View precise location of 99.91.80.212 on the map!
99.91.80.253	View precise location of 99.91.80.253 on the map!
99.91.80.133	View precise location of 99.91.80.133 on the map!
99.91.80.116	View precise location of 99.91.80.116 on the map!
99.91.80.6	View precise location of 99.91.80.6 on the map!
99.91.80.81	View precise location of 99.91.80.81 on the map!

10 Random IPs

138.109.81.208	Find precise map location of 138.109.81.208
149.183.142.220	Find precise map location of 149.183.142.220
141.29.246.170	Find precise map location of 141.29.246.170
193.193.136.116	Find precise map location of 193.193.136.116
29.106.146.249	Find precise map location of 29.106.146.249
195.43.42.62	Find precise map location of 195.43.42.62
97.84.73.80	Find precise map location of 97.84.73.80
143.124.231.236	Find precise map location of 143.124.231.236
255.248.101.156	Find precise map location of 255.248.101.156
173.36.38.217	Find precise map location of 173.36.38.217
97.194.195.26	Find precise map location of 97.194.195.26

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