181.4.173 is a class C of IPs

Sample IPs from the class C 181.4.173

181.4.173.51	View precise location of 181.4.173.51 on the map!
181.4.173.138	View precise location of 181.4.173.138 on the map!
181.4.173.9	View precise location of 181.4.173.9 on the map!
181.4.173.167	View precise location of 181.4.173.167 on the map!
181.4.173.132	View precise location of 181.4.173.132 on the map!
181.4.173.231	View precise location of 181.4.173.231 on the map!
181.4.173.168	View precise location of 181.4.173.168 on the map!
181.4.173.94	View precise location of 181.4.173.94 on the map!
181.4.173.174	View precise location of 181.4.173.174 on the map!
181.4.173.122	View precise location of 181.4.173.122 on the map!
181.4.173.122	View precise location of 181.4.173.122 on the map!

10 Random IPs

251.147.62.225	Find precise map location of 251.147.62.225
186.223.255.90	Find precise map location of 186.223.255.90
64.198.209.94	Find precise map location of 64.198.209.94
34.230.157.161	Find precise map location of 34.230.157.161
170.124.209.116	Find precise map location of 170.124.209.116
192.154.208.136	Find precise map location of 192.154.208.136
68.246.58.38	Find precise map location of 68.246.58.38
131.3.144.237	Find precise map location of 131.3.144.237
240.77.3.243	Find precise map location of 240.77.3.243
51.130.93.65	Find precise map location of 51.130.93.65
63.9.117.123	Find precise map location of 63.9.117.123

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