57.21.217 is a class C of IPs

Sample IPs from the class C 57.21.217

57.21.217.1	View precise location of 57.21.217.1 on the map!
57.21.217.232	View precise location of 57.21.217.232 on the map!
57.21.217.40	View precise location of 57.21.217.40 on the map!
57.21.217.3	View precise location of 57.21.217.3 on the map!
57.21.217.243	View precise location of 57.21.217.243 on the map!
57.21.217.50	View precise location of 57.21.217.50 on the map!
57.21.217.75	View precise location of 57.21.217.75 on the map!
57.21.217.122	View precise location of 57.21.217.122 on the map!
57.21.217.88	View precise location of 57.21.217.88 on the map!
57.21.217.130	View precise location of 57.21.217.130 on the map!
57.21.217.172	View precise location of 57.21.217.172 on the map!

10 Random IPs

33.120.149.212	Find precise map location of 33.120.149.212
131.86.255.2	Find precise map location of 131.86.255.2
125.49.200.187	Find precise map location of 125.49.200.187
222.180.20.11	Find precise map location of 222.180.20.11
112.30.236.124	Find precise map location of 112.30.236.124
35.18.234.228	Find precise map location of 35.18.234.228
145.55.188.146	Find precise map location of 145.55.188.146
143.159.123.205	Find precise map location of 143.159.123.205
12.196.19.87	Find precise map location of 12.196.19.87
1.16.75.65	Find precise map location of 1.16.75.65
154.91.164.48	Find precise map location of 154.91.164.48

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