251.10.143 is a class C of IPs

Sample IPs from the class C 251.10.143

251.10.143.11	View precise location of 251.10.143.11 on the map!
251.10.143.128	View precise location of 251.10.143.128 on the map!
251.10.143.9	View precise location of 251.10.143.9 on the map!
251.10.143.194	View precise location of 251.10.143.194 on the map!
251.10.143.238	View precise location of 251.10.143.238 on the map!
251.10.143.107	View precise location of 251.10.143.107 on the map!
251.10.143.172	View precise location of 251.10.143.172 on the map!
251.10.143.154	View precise location of 251.10.143.154 on the map!
251.10.143.212	View precise location of 251.10.143.212 on the map!
251.10.143.37	View precise location of 251.10.143.37 on the map!
251.10.143.171	View precise location of 251.10.143.171 on the map!

10 Random IPs

48.82.242.65	Find precise map location of 48.82.242.65
86.97.145.34	Find precise map location of 86.97.145.34
77.107.203.232	Find precise map location of 77.107.203.232
94.160.136.187	Find precise map location of 94.160.136.187
243.3.76.35	Find precise map location of 243.3.76.35
19.249.139.68	Find precise map location of 19.249.139.68
64.1.27.196	Find precise map location of 64.1.27.196
222.234.224.92	Find precise map location of 222.234.224.92
191.181.3.166	Find precise map location of 191.181.3.166
84.240.104.205	Find precise map location of 84.240.104.205
235.54.21.137	Find precise map location of 235.54.21.137

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