17.99.255 is a class C of IPs

Sample IPs from the class C 17.99.255

17.99.255.4	View precise location of 17.99.255.4 on the map!
17.99.255.228	View precise location of 17.99.255.228 on the map!
17.99.255.217	View precise location of 17.99.255.217 on the map!
17.99.255.7	View precise location of 17.99.255.7 on the map!
17.99.255.174	View precise location of 17.99.255.174 on the map!
17.99.255.253	View precise location of 17.99.255.253 on the map!
17.99.255.75	View precise location of 17.99.255.75 on the map!
17.99.255.81	View precise location of 17.99.255.81 on the map!
17.99.255.84	View precise location of 17.99.255.84 on the map!
17.99.255.118	View precise location of 17.99.255.118 on the map!
17.99.255.238	View precise location of 17.99.255.238 on the map!

10 Random IPs

63.95.180.212	Find precise map location of 63.95.180.212
31.212.62.182	Find precise map location of 31.212.62.182
160.156.103.187	Find precise map location of 160.156.103.187
208.246.111.223	Find precise map location of 208.246.111.223
240.219.105.239	Find precise map location of 240.219.105.239
53.222.67.71	Find precise map location of 53.222.67.71
91.196.190.161	Find precise map location of 91.196.190.161
58.230.22.181	Find precise map location of 58.230.22.181
63.132.40.183	Find precise map location of 63.132.40.183
193.239.36.209	Find precise map location of 193.239.36.209
220.98.78.80	Find precise map location of 220.98.78.80

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