113.21.147 is a class C of IPs

Sample IPs from the class C 113.21.147

113.21.147.156	View precise location of 113.21.147.156 on the map!
113.21.147.28	View precise location of 113.21.147.28 on the map!
113.21.147.28	View precise location of 113.21.147.28 on the map!
113.21.147.63	View precise location of 113.21.147.63 on the map!
113.21.147.250	View precise location of 113.21.147.250 on the map!
113.21.147.88	View precise location of 113.21.147.88 on the map!
113.21.147.110	View precise location of 113.21.147.110 on the map!
113.21.147.174	View precise location of 113.21.147.174 on the map!
113.21.147.53	View precise location of 113.21.147.53 on the map!
113.21.147.66	View precise location of 113.21.147.66 on the map!
113.21.147.87	View precise location of 113.21.147.87 on the map!

10 Random IPs

162.61.83.209	Find precise map location of 162.61.83.209
130.177.30.220	Find precise map location of 130.177.30.220
90.177.243.11	Find precise map location of 90.177.243.11
55.247.24.101	Find precise map location of 55.247.24.101
129.220.50.158	Find precise map location of 129.220.50.158
200.201.40.50	Find precise map location of 200.201.40.50
80.148.77.131	Find precise map location of 80.148.77.131
82.44.199.204	Find precise map location of 82.44.199.204
184.244.143.31	Find precise map location of 184.244.143.31
221.43.247.148	Find precise map location of 221.43.247.148
1.217.39.115	Find precise map location of 1.217.39.115

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