21.30.90 is a class C of IPs

Sample IPs from the class C 21.30.90

21.30.90.39	View precise location of 21.30.90.39 on the map!
21.30.90.136	View precise location of 21.30.90.136 on the map!
21.30.90.211	View precise location of 21.30.90.211 on the map!
21.30.90.254	View precise location of 21.30.90.254 on the map!
21.30.90.178	View precise location of 21.30.90.178 on the map!
21.30.90.71	View precise location of 21.30.90.71 on the map!
21.30.90.143	View precise location of 21.30.90.143 on the map!
21.30.90.208	View precise location of 21.30.90.208 on the map!
21.30.90.53	View precise location of 21.30.90.53 on the map!
21.30.90.165	View precise location of 21.30.90.165 on the map!
21.30.90.89	View precise location of 21.30.90.89 on the map!

10 Random IPs

105.130.166.96	Find precise map location of 105.130.166.96
126.233.120.119	Find precise map location of 126.233.120.119
108.27.35.131	Find precise map location of 108.27.35.131
46.97.1.180	Find precise map location of 46.97.1.180
146.132.145.168	Find precise map location of 146.132.145.168
136.162.165.160	Find precise map location of 136.162.165.160
223.209.61.162	Find precise map location of 223.209.61.162
174.169.64.15	Find precise map location of 174.169.64.15
172.132.152.20	Find precise map location of 172.132.152.20
71.193.40.52	Find precise map location of 71.193.40.52
153.132.84.4	Find precise map location of 153.132.84.4

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