15.99.74 is a class C of IPs

Sample IPs from the class C 15.99.74

15.99.74.132	View precise location of 15.99.74.132 on the map!
15.99.74.26	View precise location of 15.99.74.26 on the map!
15.99.74.101	View precise location of 15.99.74.101 on the map!
15.99.74.160	View precise location of 15.99.74.160 on the map!
15.99.74.244	View precise location of 15.99.74.244 on the map!
15.99.74.6	View precise location of 15.99.74.6 on the map!
15.99.74.202	View precise location of 15.99.74.202 on the map!
15.99.74.133	View precise location of 15.99.74.133 on the map!
15.99.74.56	View precise location of 15.99.74.56 on the map!
15.99.74.169	View precise location of 15.99.74.169 on the map!
15.99.74.145	View precise location of 15.99.74.145 on the map!

10 Random IPs

75.200.79.174	Find precise map location of 75.200.79.174
11.22.137.165	Find precise map location of 11.22.137.165
240.201.92.52	Find precise map location of 240.201.92.52
12.29.165.37	Find precise map location of 12.29.165.37
20.96.119.191	Find precise map location of 20.96.119.191
115.30.229.80	Find precise map location of 115.30.229.80
253.237.105.210	Find precise map location of 253.237.105.210
75.184.86.158	Find precise map location of 75.184.86.158
85.240.168.185	Find precise map location of 85.240.168.185
127.120.113.205	Find precise map location of 127.120.113.205
207.36.155.99	Find precise map location of 207.36.155.99

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