18.72.72 is a class C of IPs

Sample IPs from the class C 18.72.72

18.72.72.217	View precise location of 18.72.72.217 on the map!
18.72.72.88	View precise location of 18.72.72.88 on the map!
18.72.72.125	View precise location of 18.72.72.125 on the map!
18.72.72.130	View precise location of 18.72.72.130 on the map!
18.72.72.222	View precise location of 18.72.72.222 on the map!
18.72.72.227	View precise location of 18.72.72.227 on the map!
18.72.72.71	View precise location of 18.72.72.71 on the map!
18.72.72.61	View precise location of 18.72.72.61 on the map!
18.72.72.117	View precise location of 18.72.72.117 on the map!
18.72.72.123	View precise location of 18.72.72.123 on the map!
18.72.72.22	View precise location of 18.72.72.22 on the map!

10 Random IPs

249.193.138.103	Find precise map location of 249.193.138.103
194.93.237.184	Find precise map location of 194.93.237.184
219.176.147.253	Find precise map location of 219.176.147.253
219.191.39.54	Find precise map location of 219.191.39.54
173.203.222.78	Find precise map location of 173.203.222.78
138.67.109.107	Find precise map location of 138.67.109.107
40.246.42.79	Find precise map location of 40.246.42.79
218.228.133.226	Find precise map location of 218.228.133.226
199.214.229.50	Find precise map location of 199.214.229.50
234.139.44.103	Find precise map location of 234.139.44.103
78.91.180.239	Find precise map location of 78.91.180.239

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