81.166.88 is a class C of IPs

Sample IPs from the class C 81.166.88

81.166.88.155	View precise location of 81.166.88.155 on the map!
81.166.88.25	View precise location of 81.166.88.25 on the map!
81.166.88.186	View precise location of 81.166.88.186 on the map!
81.166.88.101	View precise location of 81.166.88.101 on the map!
81.166.88.11	View precise location of 81.166.88.11 on the map!
81.166.88.47	View precise location of 81.166.88.47 on the map!
81.166.88.160	View precise location of 81.166.88.160 on the map!
81.166.88.9	View precise location of 81.166.88.9 on the map!
81.166.88.127	View precise location of 81.166.88.127 on the map!
81.166.88.58	View precise location of 81.166.88.58 on the map!
81.166.88.71	View precise location of 81.166.88.71 on the map!

10 Random IPs

124.72.33.227	Find precise map location of 124.72.33.227
4.236.228.23	Find precise map location of 4.236.228.23
6.59.198.133	Find precise map location of 6.59.198.133
154.151.214.94	Find precise map location of 154.151.214.94
94.202.5.120	Find precise map location of 94.202.5.120
138.193.109.221	Find precise map location of 138.193.109.221
148.154.17.239	Find precise map location of 148.154.17.239
212.119.82.70	Find precise map location of 212.119.82.70
114.3.95.195	Find precise map location of 114.3.95.195
253.36.42.231	Find precise map location of 253.36.42.231
205.72.73.104	Find precise map location of 205.72.73.104

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