181.148.221 is a class C of IPs

Sample IPs from the class C 181.148.221

181.148.221.22	View precise location of 181.148.221.22 on the map!
181.148.221.194	View precise location of 181.148.221.194 on the map!
181.148.221.25	View precise location of 181.148.221.25 on the map!
181.148.221.157	View precise location of 181.148.221.157 on the map!
181.148.221.251	View precise location of 181.148.221.251 on the map!
181.148.221.129	View precise location of 181.148.221.129 on the map!
181.148.221.189	View precise location of 181.148.221.189 on the map!
181.148.221.5	View precise location of 181.148.221.5 on the map!
181.148.221.198	View precise location of 181.148.221.198 on the map!
181.148.221.48	View precise location of 181.148.221.48 on the map!
181.148.221.195	View precise location of 181.148.221.195 on the map!

10 Random IPs

93.67.118.120	Find precise map location of 93.67.118.120
72.68.123.152	Find precise map location of 72.68.123.152
230.200.57.13	Find precise map location of 230.200.57.13
229.184.36.23	Find precise map location of 229.184.36.23
12.190.51.208	Find precise map location of 12.190.51.208
197.177.155.223	Find precise map location of 197.177.155.223
66.41.61.229	Find precise map location of 66.41.61.229
72.236.64.173	Find precise map location of 72.236.64.173
243.50.64.161	Find precise map location of 243.50.64.161
197.252.227.130	Find precise map location of 197.252.227.130
131.3.116.5	Find precise map location of 131.3.116.5

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