57.251.212 is a class C of IPs

Sample IPs from the class C 57.251.212

57.251.212.163	View precise location of 57.251.212.163 on the map!
57.251.212.105	View precise location of 57.251.212.105 on the map!
57.251.212.85	View precise location of 57.251.212.85 on the map!
57.251.212.91	View precise location of 57.251.212.91 on the map!
57.251.212.42	View precise location of 57.251.212.42 on the map!
57.251.212.238	View precise location of 57.251.212.238 on the map!
57.251.212.228	View precise location of 57.251.212.228 on the map!
57.251.212.220	View precise location of 57.251.212.220 on the map!
57.251.212.54	View precise location of 57.251.212.54 on the map!
57.251.212.46	View precise location of 57.251.212.46 on the map!
57.251.212.125	View precise location of 57.251.212.125 on the map!

10 Random IPs

150.222.182.227	Find precise map location of 150.222.182.227
86.107.183.119	Find precise map location of 86.107.183.119
146.65.107.15	Find precise map location of 146.65.107.15
109.49.251.90	Find precise map location of 109.49.251.90
16.242.252.135	Find precise map location of 16.242.252.135
21.145.1.150	Find precise map location of 21.145.1.150
3.168.178.100	Find precise map location of 3.168.178.100
116.218.159.28	Find precise map location of 116.218.159.28
45.218.152.101	Find precise map location of 45.218.152.101
232.85.226.58	Find precise map location of 232.85.226.58
48.56.32.135	Find precise map location of 48.56.32.135

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