128.143.251 is a class C of IPs

Sample IPs from the class C 128.143.251

128.143.251.173	View precise location of 128.143.251.173 on the map!
128.143.251.223	View precise location of 128.143.251.223 on the map!
128.143.251.245	View precise location of 128.143.251.245 on the map!
128.143.251.103	View precise location of 128.143.251.103 on the map!
128.143.251.96	View precise location of 128.143.251.96 on the map!
128.143.251.203	View precise location of 128.143.251.203 on the map!
128.143.251.71	View precise location of 128.143.251.71 on the map!
128.143.251.67	View precise location of 128.143.251.67 on the map!
128.143.251.154	View precise location of 128.143.251.154 on the map!
128.143.251.87	View precise location of 128.143.251.87 on the map!
128.143.251.136	View precise location of 128.143.251.136 on the map!

10 Random IPs

90.127.153.8	Find precise map location of 90.127.153.8
235.204.29.208	Find precise map location of 235.204.29.208
77.211.215.197	Find precise map location of 77.211.215.197
73.130.120.233	Find precise map location of 73.130.120.233
243.71.96.231	Find precise map location of 243.71.96.231
212.87.59.135	Find precise map location of 212.87.59.135
157.196.172.114	Find precise map location of 157.196.172.114
145.250.103.27	Find precise map location of 145.250.103.27
211.219.230.226	Find precise map location of 211.219.230.226
2.209.217.178	Find precise map location of 2.209.217.178
88.194.122.232	Find precise map location of 88.194.122.232

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