198.56.121 is a class C of IPs

Sample IPs from the class C 198.56.121

198.56.121.100	View precise location of 198.56.121.100 on the map!
198.56.121.57	View precise location of 198.56.121.57 on the map!
198.56.121.191	View precise location of 198.56.121.191 on the map!
198.56.121.17	View precise location of 198.56.121.17 on the map!
198.56.121.221	View precise location of 198.56.121.221 on the map!
198.56.121.207	View precise location of 198.56.121.207 on the map!
198.56.121.124	View precise location of 198.56.121.124 on the map!
198.56.121.246	View precise location of 198.56.121.246 on the map!
198.56.121.204	View precise location of 198.56.121.204 on the map!
198.56.121.22	View precise location of 198.56.121.22 on the map!
198.56.121.242	View precise location of 198.56.121.242 on the map!

10 Random IPs

92.147.170.17	Find precise map location of 92.147.170.17
108.213.86.143	Find precise map location of 108.213.86.143
113.17.142.101	Find precise map location of 113.17.142.101
37.225.156.39	Find precise map location of 37.225.156.39
40.161.194.183	Find precise map location of 40.161.194.183
90.106.91.168	Find precise map location of 90.106.91.168
22.136.66.45	Find precise map location of 22.136.66.45
181.112.209.102	Find precise map location of 181.112.209.102
185.164.10.144	Find precise map location of 185.164.10.144
248.70.114.93	Find precise map location of 248.70.114.93
148.104.227.58	Find precise map location of 148.104.227.58

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