78.255.221 is a class C of IPs

Sample IPs from the class C 78.255.221

78.255.221.25	View precise location of 78.255.221.25 on the map!
78.255.221.76	View precise location of 78.255.221.76 on the map!
78.255.221.73	View precise location of 78.255.221.73 on the map!
78.255.221.139	View precise location of 78.255.221.139 on the map!
78.255.221.248	View precise location of 78.255.221.248 on the map!
78.255.221.98	View precise location of 78.255.221.98 on the map!
78.255.221.223	View precise location of 78.255.221.223 on the map!
78.255.221.50	View precise location of 78.255.221.50 on the map!
78.255.221.177	View precise location of 78.255.221.177 on the map!
78.255.221.250	View precise location of 78.255.221.250 on the map!
78.255.221.134	View precise location of 78.255.221.134 on the map!

10 Random IPs

116.215.159.96	Find precise map location of 116.215.159.96
57.208.151.230	Find precise map location of 57.208.151.230
116.21.1.195	Find precise map location of 116.21.1.195
126.249.77.241	Find precise map location of 126.249.77.241
217.104.94.104	Find precise map location of 217.104.94.104
102.76.76.26	Find precise map location of 102.76.76.26
121.79.102.22	Find precise map location of 121.79.102.22
183.93.253.205	Find precise map location of 183.93.253.205
181.46.244.59	Find precise map location of 181.46.244.59
65.118.109.174	Find precise map location of 65.118.109.174
179.224.214.243	Find precise map location of 179.224.214.243

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