15.198.221 is a class C of IPs

Sample IPs from the class C 15.198.221

15.198.221.15	View precise location of 15.198.221.15 on the map!
15.198.221.255	View precise location of 15.198.221.255 on the map!
15.198.221.173	View precise location of 15.198.221.173 on the map!
15.198.221.247	View precise location of 15.198.221.247 on the map!
15.198.221.12	View precise location of 15.198.221.12 on the map!
15.198.221.103	View precise location of 15.198.221.103 on the map!
15.198.221.162	View precise location of 15.198.221.162 on the map!
15.198.221.15	View precise location of 15.198.221.15 on the map!
15.198.221.94	View precise location of 15.198.221.94 on the map!
15.198.221.158	View precise location of 15.198.221.158 on the map!
15.198.221.126	View precise location of 15.198.221.126 on the map!

10 Random IPs

33.139.32.249	Find precise map location of 33.139.32.249
158.214.19.37	Find precise map location of 158.214.19.37
170.72.152.185	Find precise map location of 170.72.152.185
213.224.216.90	Find precise map location of 213.224.216.90
215.171.162.254	Find precise map location of 215.171.162.254
121.5.16.15	Find precise map location of 121.5.16.15
5.222.83.220	Find precise map location of 5.222.83.220
8.250.242.101	Find precise map location of 8.250.242.101
230.146.58.149	Find precise map location of 230.146.58.149
10.137.248.43	Find precise map location of 10.137.248.43
149.251.7.49	Find precise map location of 149.251.7.49

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