21.50.37 is a class C of IPs

Sample IPs from the class C 21.50.37

21.50.37.252	View precise location of 21.50.37.252 on the map!
21.50.37.47	View precise location of 21.50.37.47 on the map!
21.50.37.228	View precise location of 21.50.37.228 on the map!
21.50.37.63	View precise location of 21.50.37.63 on the map!
21.50.37.219	View precise location of 21.50.37.219 on the map!
21.50.37.74	View precise location of 21.50.37.74 on the map!
21.50.37.15	View precise location of 21.50.37.15 on the map!
21.50.37.49	View precise location of 21.50.37.49 on the map!
21.50.37.62	View precise location of 21.50.37.62 on the map!
21.50.37.224	View precise location of 21.50.37.224 on the map!
21.50.37.41	View precise location of 21.50.37.41 on the map!

10 Random IPs

163.37.180.122	Find precise map location of 163.37.180.122
120.85.113.172	Find precise map location of 120.85.113.172
112.4.132.118	Find precise map location of 112.4.132.118
197.45.3.47	Find precise map location of 197.45.3.47
174.234.55.174	Find precise map location of 174.234.55.174
91.73.37.204	Find precise map location of 91.73.37.204
119.129.236.138	Find precise map location of 119.129.236.138
135.2.74.98	Find precise map location of 135.2.74.98
4.246.211.65	Find precise map location of 4.246.211.65
54.9.118.190	Find precise map location of 54.9.118.190
254.128.131.4	Find precise map location of 254.128.131.4

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