81.243.203 is a class C of IPs

Sample IPs from the class C 81.243.203

81.243.203.205	View precise location of 81.243.203.205 on the map!
81.243.203.165	View precise location of 81.243.203.165 on the map!
81.243.203.84	View precise location of 81.243.203.84 on the map!
81.243.203.7	View precise location of 81.243.203.7 on the map!
81.243.203.192	View precise location of 81.243.203.192 on the map!
81.243.203.245	View precise location of 81.243.203.245 on the map!
81.243.203.68	View precise location of 81.243.203.68 on the map!
81.243.203.208	View precise location of 81.243.203.208 on the map!
81.243.203.158	View precise location of 81.243.203.158 on the map!
81.243.203.144	View precise location of 81.243.203.144 on the map!
81.243.203.1	View precise location of 81.243.203.1 on the map!

10 Random IPs

70.69.255.56	Find precise map location of 70.69.255.56
116.62.41.46	Find precise map location of 116.62.41.46
209.179.211.151	Find precise map location of 209.179.211.151
164.134.230.161	Find precise map location of 164.134.230.161
218.201.155.10	Find precise map location of 218.201.155.10
86.166.20.115	Find precise map location of 86.166.20.115
237.237.114.204	Find precise map location of 237.237.114.204
187.133.170.183	Find precise map location of 187.133.170.183
69.138.156.202	Find precise map location of 69.138.156.202
79.34.244.27	Find precise map location of 79.34.244.27
236.160.8.223	Find precise map location of 236.160.8.223

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