57.87.100 is a class C of IPs

Sample IPs from the class C 57.87.100

57.87.100.197	View precise location of 57.87.100.197 on the map!
57.87.100.77	View precise location of 57.87.100.77 on the map!
57.87.100.126	View precise location of 57.87.100.126 on the map!
57.87.100.159	View precise location of 57.87.100.159 on the map!
57.87.100.104	View precise location of 57.87.100.104 on the map!
57.87.100.209	View precise location of 57.87.100.209 on the map!
57.87.100.37	View precise location of 57.87.100.37 on the map!
57.87.100.194	View precise location of 57.87.100.194 on the map!
57.87.100.82	View precise location of 57.87.100.82 on the map!
57.87.100.40	View precise location of 57.87.100.40 on the map!
57.87.100.28	View precise location of 57.87.100.28 on the map!

10 Random IPs

219.49.7.82	Find precise map location of 219.49.7.82
130.38.209.233	Find precise map location of 130.38.209.233
157.24.46.17	Find precise map location of 157.24.46.17
159.135.188.221	Find precise map location of 159.135.188.221
84.244.159.205	Find precise map location of 84.244.159.205
147.154.178.34	Find precise map location of 147.154.178.34
141.240.74.34	Find precise map location of 141.240.74.34
199.229.130.29	Find precise map location of 199.229.130.29
185.115.178.234	Find precise map location of 185.115.178.234
132.121.34.14	Find precise map location of 132.121.34.14
38.215.237.32	Find precise map location of 38.215.237.32

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