242.51.121 is a class C of IPs

Sample IPs from the class C 242.51.121

242.51.121.124	View precise location of 242.51.121.124 on the map!
242.51.121.8	View precise location of 242.51.121.8 on the map!
242.51.121.208	View precise location of 242.51.121.208 on the map!
242.51.121.55	View precise location of 242.51.121.55 on the map!
242.51.121.134	View precise location of 242.51.121.134 on the map!
242.51.121.125	View precise location of 242.51.121.125 on the map!
242.51.121.132	View precise location of 242.51.121.132 on the map!
242.51.121.19	View precise location of 242.51.121.19 on the map!
242.51.121.138	View precise location of 242.51.121.138 on the map!
242.51.121.112	View precise location of 242.51.121.112 on the map!
242.51.121.121	View precise location of 242.51.121.121 on the map!

10 Random IPs

40.84.67.122	Find precise map location of 40.84.67.122
85.70.179.180	Find precise map location of 85.70.179.180
21.159.1.208	Find precise map location of 21.159.1.208
183.130.211.73	Find precise map location of 183.130.211.73
61.161.148.142	Find precise map location of 61.161.148.142
183.173.195.252	Find precise map location of 183.173.195.252
174.254.190.234	Find precise map location of 174.254.190.234
226.148.136.152	Find precise map location of 226.148.136.152
125.45.82.246	Find precise map location of 125.45.82.246
147.187.74.223	Find precise map location of 147.187.74.223
100.31.154.235	Find precise map location of 100.31.154.235

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