121.44.91 is a class C of IPs

Sample IPs from the class C 121.44.91

121.44.91.147	View precise location of 121.44.91.147 on the map!
121.44.91.35	View precise location of 121.44.91.35 on the map!
121.44.91.149	View precise location of 121.44.91.149 on the map!
121.44.91.41	View precise location of 121.44.91.41 on the map!
121.44.91.253	View precise location of 121.44.91.253 on the map!
121.44.91.95	View precise location of 121.44.91.95 on the map!
121.44.91.123	View precise location of 121.44.91.123 on the map!
121.44.91.219	View precise location of 121.44.91.219 on the map!
121.44.91.48	View precise location of 121.44.91.48 on the map!
121.44.91.162	View precise location of 121.44.91.162 on the map!
121.44.91.173	View precise location of 121.44.91.173 on the map!

10 Random IPs

243.115.233.192	Find precise map location of 243.115.233.192
86.78.1.133	Find precise map location of 86.78.1.133
183.157.71.178	Find precise map location of 183.157.71.178
50.130.33.182	Find precise map location of 50.130.33.182
199.38.67.111	Find precise map location of 199.38.67.111
2.39.137.49	Find precise map location of 2.39.137.49
15.123.173.35	Find precise map location of 15.123.173.35
116.166.164.234	Find precise map location of 116.166.164.234
168.34.168.49	Find precise map location of 168.34.168.49
7.159.52.116	Find precise map location of 7.159.52.116
143.6.172.239	Find precise map location of 143.6.172.239

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