188.72.138 is a class C of IPs

Sample IPs from the class C 188.72.138

188.72.138.107	View precise location of 188.72.138.107 on the map!
188.72.138.10	View precise location of 188.72.138.10 on the map!
188.72.138.189	View precise location of 188.72.138.189 on the map!
188.72.138.248	View precise location of 188.72.138.248 on the map!
188.72.138.187	View precise location of 188.72.138.187 on the map!
188.72.138.69	View precise location of 188.72.138.69 on the map!
188.72.138.24	View precise location of 188.72.138.24 on the map!
188.72.138.16	View precise location of 188.72.138.16 on the map!
188.72.138.34	View precise location of 188.72.138.34 on the map!
188.72.138.82	View precise location of 188.72.138.82 on the map!
188.72.138.60	View precise location of 188.72.138.60 on the map!

10 Random IPs

66.242.68.50	Find precise map location of 66.242.68.50
140.253.47.220	Find precise map location of 140.253.47.220
59.133.76.62	Find precise map location of 59.133.76.62
101.21.196.249	Find precise map location of 101.21.196.249
90.63.3.32	Find precise map location of 90.63.3.32
243.28.90.236	Find precise map location of 243.28.90.236
216.81.17.211	Find precise map location of 216.81.17.211
207.131.140.25	Find precise map location of 207.131.140.25
51.121.133.249	Find precise map location of 51.121.133.249
120.101.197.132	Find precise map location of 120.101.197.132
55.82.58.158	Find precise map location of 55.82.58.158

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