231.55.17 is a class C of IPs

Sample IPs from the class C 231.55.17

231.55.17.123	View precise location of 231.55.17.123 on the map!
231.55.17.27	View precise location of 231.55.17.27 on the map!
231.55.17.81	View precise location of 231.55.17.81 on the map!
231.55.17.21	View precise location of 231.55.17.21 on the map!
231.55.17.162	View precise location of 231.55.17.162 on the map!
231.55.17.228	View precise location of 231.55.17.228 on the map!
231.55.17.140	View precise location of 231.55.17.140 on the map!
231.55.17.145	View precise location of 231.55.17.145 on the map!
231.55.17.143	View precise location of 231.55.17.143 on the map!
231.55.17.105	View precise location of 231.55.17.105 on the map!
231.55.17.209	View precise location of 231.55.17.209 on the map!

10 Random IPs

163.237.204.87	Find precise map location of 163.237.204.87
79.126.219.215	Find precise map location of 79.126.219.215
68.77.57.39	Find precise map location of 68.77.57.39
207.207.42.40	Find precise map location of 207.207.42.40
14.114.28.101	Find precise map location of 14.114.28.101
15.119.168.109	Find precise map location of 15.119.168.109
33.102.179.13	Find precise map location of 33.102.179.13
198.203.130.160	Find precise map location of 198.203.130.160
102.120.120.235	Find precise map location of 102.120.120.235
222.173.118.116	Find precise map location of 222.173.118.116
61.46.178.48	Find precise map location of 61.46.178.48

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