81.116.4 is a class C of IPs

Sample IPs from the class C 81.116.4

81.116.4.151	View precise location of 81.116.4.151 on the map!
81.116.4.147	View precise location of 81.116.4.147 on the map!
81.116.4.71	View precise location of 81.116.4.71 on the map!
81.116.4.151	View precise location of 81.116.4.151 on the map!
81.116.4.8	View precise location of 81.116.4.8 on the map!
81.116.4.26	View precise location of 81.116.4.26 on the map!
81.116.4.10	View precise location of 81.116.4.10 on the map!
81.116.4.167	View precise location of 81.116.4.167 on the map!
81.116.4.34	View precise location of 81.116.4.34 on the map!
81.116.4.141	View precise location of 81.116.4.141 on the map!
81.116.4.21	View precise location of 81.116.4.21 on the map!

10 Random IPs

74.249.79.70	Find precise map location of 74.249.79.70
246.17.50.8	Find precise map location of 246.17.50.8
229.145.181.7	Find precise map location of 229.145.181.7
203.141.75.170	Find precise map location of 203.141.75.170
226.40.32.77	Find precise map location of 226.40.32.77
126.204.181.210	Find precise map location of 126.204.181.210
165.201.72.114	Find precise map location of 165.201.72.114
111.218.243.95	Find precise map location of 111.218.243.95
158.215.192.236	Find precise map location of 158.215.192.236
214.121.168.237	Find precise map location of 214.121.168.237
89.30.59.250	Find precise map location of 89.30.59.250

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