57.77.140 is a class C of IPs

Sample IPs from the class C 57.77.140

57.77.140.76	View precise location of 57.77.140.76 on the map!
57.77.140.59	View precise location of 57.77.140.59 on the map!
57.77.140.52	View precise location of 57.77.140.52 on the map!
57.77.140.66	View precise location of 57.77.140.66 on the map!
57.77.140.6	View precise location of 57.77.140.6 on the map!
57.77.140.92	View precise location of 57.77.140.92 on the map!
57.77.140.119	View precise location of 57.77.140.119 on the map!
57.77.140.195	View precise location of 57.77.140.195 on the map!
57.77.140.237	View precise location of 57.77.140.237 on the map!
57.77.140.104	View precise location of 57.77.140.104 on the map!
57.77.140.72	View precise location of 57.77.140.72 on the map!

10 Random IPs

22.211.255.70	Find precise map location of 22.211.255.70
195.165.87.97	Find precise map location of 195.165.87.97
37.27.82.128	Find precise map location of 37.27.82.128
247.116.144.137	Find precise map location of 247.116.144.137
62.214.194.129	Find precise map location of 62.214.194.129
90.203.120.85	Find precise map location of 90.203.120.85
96.2.3.229	Find precise map location of 96.2.3.229
203.48.44.20	Find precise map location of 203.48.44.20
139.215.60.142	Find precise map location of 139.215.60.142
99.143.64.101	Find precise map location of 99.143.64.101
245.202.55.55	Find precise map location of 245.202.55.55

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