251.56.215 is a class C of IPs

Sample IPs from the class C 251.56.215

251.56.215.36	View precise location of 251.56.215.36 on the map!
251.56.215.5	View precise location of 251.56.215.5 on the map!
251.56.215.107	View precise location of 251.56.215.107 on the map!
251.56.215.59	View precise location of 251.56.215.59 on the map!
251.56.215.46	View precise location of 251.56.215.46 on the map!
251.56.215.113	View precise location of 251.56.215.113 on the map!
251.56.215.57	View precise location of 251.56.215.57 on the map!
251.56.215.195	View precise location of 251.56.215.195 on the map!
251.56.215.92	View precise location of 251.56.215.92 on the map!
251.56.215.74	View precise location of 251.56.215.74 on the map!
251.56.215.72	View precise location of 251.56.215.72 on the map!

10 Random IPs

239.254.129.148	Find precise map location of 239.254.129.148
169.103.137.126	Find precise map location of 169.103.137.126
179.201.3.27	Find precise map location of 179.201.3.27
177.64.182.202	Find precise map location of 177.64.182.202
28.170.201.231	Find precise map location of 28.170.201.231
7.153.76.78	Find precise map location of 7.153.76.78
140.85.76.216	Find precise map location of 140.85.76.216
211.154.57.49	Find precise map location of 211.154.57.49
236.206.184.171	Find precise map location of 236.206.184.171
41.191.31.41	Find precise map location of 41.191.31.41
162.82.68.58	Find precise map location of 162.82.68.58

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