81.23.116 is a class C of IPs

Sample IPs from the class C 81.23.116

81.23.116.115	View precise location of 81.23.116.115 on the map!
81.23.116.112	View precise location of 81.23.116.112 on the map!
81.23.116.103	View precise location of 81.23.116.103 on the map!
81.23.116.82	View precise location of 81.23.116.82 on the map!
81.23.116.147	View precise location of 81.23.116.147 on the map!
81.23.116.200	View precise location of 81.23.116.200 on the map!
81.23.116.242	View precise location of 81.23.116.242 on the map!
81.23.116.219	View precise location of 81.23.116.219 on the map!
81.23.116.46	View precise location of 81.23.116.46 on the map!
81.23.116.239	View precise location of 81.23.116.239 on the map!
81.23.116.119	View precise location of 81.23.116.119 on the map!

10 Random IPs

236.4.20.24	Find precise map location of 236.4.20.24
152.94.5.73	Find precise map location of 152.94.5.73
126.253.39.210	Find precise map location of 126.253.39.210
206.200.50.213	Find precise map location of 206.200.50.213
164.95.104.146	Find precise map location of 164.95.104.146
160.161.191.1	Find precise map location of 160.161.191.1
113.127.227.185	Find precise map location of 113.127.227.185
142.223.184.219	Find precise map location of 142.223.184.219
49.179.15.62	Find precise map location of 49.179.15.62
111.200.233.246	Find precise map location of 111.200.233.246
10.180.68.32	Find precise map location of 10.180.68.32

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