231.153.154 is a class C of IPs

Sample IPs from the class C 231.153.154

231.153.154.49	View precise location of 231.153.154.49 on the map!
231.153.154.176	View precise location of 231.153.154.176 on the map!
231.153.154.11	View precise location of 231.153.154.11 on the map!
231.153.154.64	View precise location of 231.153.154.64 on the map!
231.153.154.33	View precise location of 231.153.154.33 on the map!
231.153.154.199	View precise location of 231.153.154.199 on the map!
231.153.154.124	View precise location of 231.153.154.124 on the map!
231.153.154.179	View precise location of 231.153.154.179 on the map!
231.153.154.139	View precise location of 231.153.154.139 on the map!
231.153.154.164	View precise location of 231.153.154.164 on the map!
231.153.154.231	View precise location of 231.153.154.231 on the map!

10 Random IPs

1.154.21.8	Find precise map location of 1.154.21.8
243.64.176.183	Find precise map location of 243.64.176.183
1.215.235.62	Find precise map location of 1.215.235.62
233.245.31.34	Find precise map location of 233.245.31.34
169.100.163.98	Find precise map location of 169.100.163.98
79.13.28.211	Find precise map location of 79.13.28.211
32.38.237.2	Find precise map location of 32.38.237.2
180.62.16.200	Find precise map location of 180.62.16.200
140.51.124.141	Find precise map location of 140.51.124.141
131.99.25.255	Find precise map location of 131.99.25.255
62.119.75.171	Find precise map location of 62.119.75.171

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