51.213.5 is a class C of IPs

Sample IPs from the class C 51.213.5

51.213.5.91	View precise location of 51.213.5.91 on the map!
51.213.5.129	View precise location of 51.213.5.129 on the map!
51.213.5.47	View precise location of 51.213.5.47 on the map!
51.213.5.32	View precise location of 51.213.5.32 on the map!
51.213.5.221	View precise location of 51.213.5.221 on the map!
51.213.5.42	View precise location of 51.213.5.42 on the map!
51.213.5.99	View precise location of 51.213.5.99 on the map!
51.213.5.246	View precise location of 51.213.5.246 on the map!
51.213.5.111	View precise location of 51.213.5.111 on the map!
51.213.5.221	View precise location of 51.213.5.221 on the map!
51.213.5.182	View precise location of 51.213.5.182 on the map!

10 Random IPs

231.214.216.189	Find precise map location of 231.214.216.189
120.20.99.61	Find precise map location of 120.20.99.61
37.205.227.18	Find precise map location of 37.205.227.18
20.34.232.207	Find precise map location of 20.34.232.207
105.182.150.191	Find precise map location of 105.182.150.191
89.62.243.22	Find precise map location of 89.62.243.22
117.118.125.47	Find precise map location of 117.118.125.47
1.185.150.99	Find precise map location of 1.185.150.99
9.94.175.170	Find precise map location of 9.94.175.170
185.241.155.52	Find precise map location of 185.241.155.52
219.159.221.144	Find precise map location of 219.159.221.144

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