130.81.231 is a class C of IPs

Sample IPs from the class C 130.81.231

130.81.231.16	View precise location of 130.81.231.16 on the map!
130.81.231.10	View precise location of 130.81.231.10 on the map!
130.81.231.31	View precise location of 130.81.231.31 on the map!
130.81.231.243	View precise location of 130.81.231.243 on the map!
130.81.231.206	View precise location of 130.81.231.206 on the map!
130.81.231.4	View precise location of 130.81.231.4 on the map!
130.81.231.73	View precise location of 130.81.231.73 on the map!
130.81.231.225	View precise location of 130.81.231.225 on the map!
130.81.231.194	View precise location of 130.81.231.194 on the map!
130.81.231.41	View precise location of 130.81.231.41 on the map!
130.81.231.9	View precise location of 130.81.231.9 on the map!

10 Random IPs

98.64.53.90	Find precise map location of 98.64.53.90
29.219.237.186	Find precise map location of 29.219.237.186
152.99.185.143	Find precise map location of 152.99.185.143
126.137.123.59	Find precise map location of 126.137.123.59
247.16.143.78	Find precise map location of 247.16.143.78
140.146.62.11	Find precise map location of 140.146.62.11
224.82.117.24	Find precise map location of 224.82.117.24
191.146.64.224	Find precise map location of 191.146.64.224
241.147.35.158	Find precise map location of 241.147.35.158
212.18.74.7	Find precise map location of 212.18.74.7
182.127.135.174	Find precise map location of 182.127.135.174

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