57.21.70 is a class C of IPs

Sample IPs from the class C 57.21.70

57.21.70.222	View precise location of 57.21.70.222 on the map!
57.21.70.110	View precise location of 57.21.70.110 on the map!
57.21.70.235	View precise location of 57.21.70.235 on the map!
57.21.70.199	View precise location of 57.21.70.199 on the map!
57.21.70.252	View precise location of 57.21.70.252 on the map!
57.21.70.148	View precise location of 57.21.70.148 on the map!
57.21.70.175	View precise location of 57.21.70.175 on the map!
57.21.70.204	View precise location of 57.21.70.204 on the map!
57.21.70.118	View precise location of 57.21.70.118 on the map!
57.21.70.138	View precise location of 57.21.70.138 on the map!
57.21.70.53	View precise location of 57.21.70.53 on the map!

10 Random IPs

231.221.104.14	Find precise map location of 231.221.104.14
195.160.218.131	Find precise map location of 195.160.218.131
49.12.229.166	Find precise map location of 49.12.229.166
245.23.220.19	Find precise map location of 245.23.220.19
229.124.77.208	Find precise map location of 229.124.77.208
150.83.210.70	Find precise map location of 150.83.210.70
209.101.4.78	Find precise map location of 209.101.4.78
121.95.129.46	Find precise map location of 121.95.129.46
159.60.89.233	Find precise map location of 159.60.89.233
77.233.205.132	Find precise map location of 77.233.205.132
63.167.206.101	Find precise map location of 63.167.206.101

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