21.144.18 is a class C of IPs

Sample IPs from the class C 21.144.18

21.144.18.37	View precise location of 21.144.18.37 on the map!
21.144.18.26	View precise location of 21.144.18.26 on the map!
21.144.18.183	View precise location of 21.144.18.183 on the map!
21.144.18.135	View precise location of 21.144.18.135 on the map!
21.144.18.233	View precise location of 21.144.18.233 on the map!
21.144.18.220	View precise location of 21.144.18.220 on the map!
21.144.18.205	View precise location of 21.144.18.205 on the map!
21.144.18.109	View precise location of 21.144.18.109 on the map!
21.144.18.223	View precise location of 21.144.18.223 on the map!
21.144.18.25	View precise location of 21.144.18.25 on the map!
21.144.18.60	View precise location of 21.144.18.60 on the map!

10 Random IPs

177.110.202.140	Find precise map location of 177.110.202.140
57.200.196.60	Find precise map location of 57.200.196.60
89.229.196.33	Find precise map location of 89.229.196.33
61.13.244.47	Find precise map location of 61.13.244.47
108.88.4.86	Find precise map location of 108.88.4.86
71.222.82.133	Find precise map location of 71.222.82.133
191.115.231.210	Find precise map location of 191.115.231.210
240.147.87.135	Find precise map location of 240.147.87.135
131.224.27.157	Find precise map location of 131.224.27.157
36.171.166.158	Find precise map location of 36.171.166.158
4.55.196.92	Find precise map location of 4.55.196.92

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