51.129.52 is a class C of IPs

Sample IPs from the class C 51.129.52

51.129.52.70	View precise location of 51.129.52.70 on the map!
51.129.52.77	View precise location of 51.129.52.77 on the map!
51.129.52.164	View precise location of 51.129.52.164 on the map!
51.129.52.9	View precise location of 51.129.52.9 on the map!
51.129.52.35	View precise location of 51.129.52.35 on the map!
51.129.52.100	View precise location of 51.129.52.100 on the map!
51.129.52.117	View precise location of 51.129.52.117 on the map!
51.129.52.99	View precise location of 51.129.52.99 on the map!
51.129.52.214	View precise location of 51.129.52.214 on the map!
51.129.52.200	View precise location of 51.129.52.200 on the map!
51.129.52.37	View precise location of 51.129.52.37 on the map!

10 Random IPs

249.83.137.8	Find precise map location of 249.83.137.8
229.173.185.1	Find precise map location of 229.173.185.1
148.63.151.25	Find precise map location of 148.63.151.25
101.50.33.208	Find precise map location of 101.50.33.208
195.163.120.2	Find precise map location of 195.163.120.2
250.136.158.248	Find precise map location of 250.136.158.248
229.175.227.80	Find precise map location of 229.175.227.80
202.71.7.222	Find precise map location of 202.71.7.222
92.32.66.72	Find precise map location of 92.32.66.72
206.55.156.162	Find precise map location of 206.55.156.162
40.85.90.43	Find precise map location of 40.85.90.43

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