231.180.221 is a class C of IPs

Sample IPs from the class C 231.180.221

231.180.221.228	View precise location of 231.180.221.228 on the map!
231.180.221.25	View precise location of 231.180.221.25 on the map!
231.180.221.96	View precise location of 231.180.221.96 on the map!
231.180.221.86	View precise location of 231.180.221.86 on the map!
231.180.221.238	View precise location of 231.180.221.238 on the map!
231.180.221.205	View precise location of 231.180.221.205 on the map!
231.180.221.144	View precise location of 231.180.221.144 on the map!
231.180.221.229	View precise location of 231.180.221.229 on the map!
231.180.221.4	View precise location of 231.180.221.4 on the map!
231.180.221.82	View precise location of 231.180.221.82 on the map!
231.180.221.9	View precise location of 231.180.221.9 on the map!

10 Random IPs

79.178.27.134	Find precise map location of 79.178.27.134
208.1.78.180	Find precise map location of 208.1.78.180
84.77.176.243	Find precise map location of 84.77.176.243
71.159.224.217	Find precise map location of 71.159.224.217
75.123.152.201	Find precise map location of 75.123.152.201
148.229.145.240	Find precise map location of 148.229.145.240
125.61.198.19	Find precise map location of 125.61.198.19
231.38.184.157	Find precise map location of 231.38.184.157
134.25.13.218	Find precise map location of 134.25.13.218
83.61.14.134	Find precise map location of 83.61.14.134
149.158.131.95	Find precise map location of 149.158.131.95

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