156.138.18 is a class C of IPs

Sample IPs from the class C 156.138.18

156.138.18.45	View precise location of 156.138.18.45 on the map!
156.138.18.105	View precise location of 156.138.18.105 on the map!
156.138.18.60	View precise location of 156.138.18.60 on the map!
156.138.18.240	View precise location of 156.138.18.240 on the map!
156.138.18.71	View precise location of 156.138.18.71 on the map!
156.138.18.205	View precise location of 156.138.18.205 on the map!
156.138.18.251	View precise location of 156.138.18.251 on the map!
156.138.18.233	View precise location of 156.138.18.233 on the map!
156.138.18.5	View precise location of 156.138.18.5 on the map!
156.138.18.34	View precise location of 156.138.18.34 on the map!
156.138.18.66	View precise location of 156.138.18.66 on the map!

10 Random IPs

184.109.161.133	Find precise map location of 184.109.161.133
135.57.221.85	Find precise map location of 135.57.221.85
66.100.133.23	Find precise map location of 66.100.133.23
72.189.51.49	Find precise map location of 72.189.51.49
49.20.1.192	Find precise map location of 49.20.1.192
176.210.85.63	Find precise map location of 176.210.85.63
78.229.123.133	Find precise map location of 78.229.123.133
231.160.30.96	Find precise map location of 231.160.30.96
73.4.184.92	Find precise map location of 73.4.184.92
255.9.134.114	Find precise map location of 255.9.134.114
217.91.188.118	Find precise map location of 217.91.188.118

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