21.237.104 is a class C of IPs

Sample IPs from the class C 21.237.104

21.237.104.133	View precise location of 21.237.104.133 on the map!
21.237.104.225	View precise location of 21.237.104.225 on the map!
21.237.104.108	View precise location of 21.237.104.108 on the map!
21.237.104.126	View precise location of 21.237.104.126 on the map!
21.237.104.187	View precise location of 21.237.104.187 on the map!
21.237.104.242	View precise location of 21.237.104.242 on the map!
21.237.104.155	View precise location of 21.237.104.155 on the map!
21.237.104.61	View precise location of 21.237.104.61 on the map!
21.237.104.212	View precise location of 21.237.104.212 on the map!
21.237.104.88	View precise location of 21.237.104.88 on the map!
21.237.104.247	View precise location of 21.237.104.247 on the map!

10 Random IPs

31.193.239.166	Find precise map location of 31.193.239.166
143.78.153.30	Find precise map location of 143.78.153.30
31.168.116.151	Find precise map location of 31.168.116.151
90.125.223.44	Find precise map location of 90.125.223.44
137.2.3.43	Find precise map location of 137.2.3.43
134.150.146.54	Find precise map location of 134.150.146.54
69.165.123.196	Find precise map location of 69.165.123.196
68.236.135.129	Find precise map location of 68.236.135.129
173.253.156.144	Find precise map location of 173.253.156.144
20.200.192.3	Find precise map location of 20.200.192.3
36.225.39.113	Find precise map location of 36.225.39.113

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