121.10.173 is a class C of IPs

Sample IPs from the class C 121.10.173

121.10.173.245	View precise location of 121.10.173.245 on the map!
121.10.173.178	View precise location of 121.10.173.178 on the map!
121.10.173.228	View precise location of 121.10.173.228 on the map!
121.10.173.187	View precise location of 121.10.173.187 on the map!
121.10.173.102	View precise location of 121.10.173.102 on the map!
121.10.173.83	View precise location of 121.10.173.83 on the map!
121.10.173.143	View precise location of 121.10.173.143 on the map!
121.10.173.110	View precise location of 121.10.173.110 on the map!
121.10.173.68	View precise location of 121.10.173.68 on the map!
121.10.173.110	View precise location of 121.10.173.110 on the map!
121.10.173.155	View precise location of 121.10.173.155 on the map!

10 Random IPs

146.145.122.12	Find precise map location of 146.145.122.12
154.211.207.160	Find precise map location of 154.211.207.160
41.209.24.218	Find precise map location of 41.209.24.218
144.125.232.209	Find precise map location of 144.125.232.209
125.126.154.58	Find precise map location of 125.126.154.58
198.3.131.83	Find precise map location of 198.3.131.83
210.248.29.135	Find precise map location of 210.248.29.135
254.154.73.76	Find precise map location of 254.154.73.76
171.237.232.123	Find precise map location of 171.237.232.123
191.133.66.110	Find precise map location of 191.133.66.110
120.149.111.94	Find precise map location of 120.149.111.94

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