224.13.172 is a class C of IPs

Sample IPs from the class C 224.13.172

224.13.172.120	View precise location of 224.13.172.120 on the map!
224.13.172.230	View precise location of 224.13.172.230 on the map!
224.13.172.152	View precise location of 224.13.172.152 on the map!
224.13.172.209	View precise location of 224.13.172.209 on the map!
224.13.172.35	View precise location of 224.13.172.35 on the map!
224.13.172.145	View precise location of 224.13.172.145 on the map!
224.13.172.239	View precise location of 224.13.172.239 on the map!
224.13.172.86	View precise location of 224.13.172.86 on the map!
224.13.172.47	View precise location of 224.13.172.47 on the map!
224.13.172.19	View precise location of 224.13.172.19 on the map!
224.13.172.171	View precise location of 224.13.172.171 on the map!

10 Random IPs

254.40.121.122	Find precise map location of 254.40.121.122
105.217.84.69	Find precise map location of 105.217.84.69
190.67.67.60	Find precise map location of 190.67.67.60
32.210.119.5	Find precise map location of 32.210.119.5
245.33.57.121	Find precise map location of 245.33.57.121
210.47.255.223	Find precise map location of 210.47.255.223
238.24.53.92	Find precise map location of 238.24.53.92
191.63.67.224	Find precise map location of 191.63.67.224
201.193.227.51	Find precise map location of 201.193.227.51
64.68.70.127	Find precise map location of 64.68.70.127
116.197.7.210	Find precise map location of 116.197.7.210

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