228.57.251 is a class C of IPs

Sample IPs from the class C 228.57.251

228.57.251.42	View precise location of 228.57.251.42 on the map!
228.57.251.11	View precise location of 228.57.251.11 on the map!
228.57.251.35	View precise location of 228.57.251.35 on the map!
228.57.251.231	View precise location of 228.57.251.231 on the map!
228.57.251.87	View precise location of 228.57.251.87 on the map!
228.57.251.140	View precise location of 228.57.251.140 on the map!
228.57.251.19	View precise location of 228.57.251.19 on the map!
228.57.251.57	View precise location of 228.57.251.57 on the map!
228.57.251.121	View precise location of 228.57.251.121 on the map!
228.57.251.122	View precise location of 228.57.251.122 on the map!
228.57.251.167	View precise location of 228.57.251.167 on the map!

10 Random IPs

54.186.63.172	Find precise map location of 54.186.63.172
217.1.123.100	Find precise map location of 217.1.123.100
206.95.10.4	Find precise map location of 206.95.10.4
40.180.75.138	Find precise map location of 40.180.75.138
36.233.171.140	Find precise map location of 36.233.171.140
12.185.143.71	Find precise map location of 12.185.143.71
34.80.59.22	Find precise map location of 34.80.59.22
190.28.179.222	Find precise map location of 190.28.179.222
81.126.203.203	Find precise map location of 81.126.203.203
85.226.203.37	Find precise map location of 85.226.203.37
36.17.117.17	Find precise map location of 36.17.117.17

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