100.87.15 is a class C of IPs

Sample IPs from the class C 100.87.15

100.87.15.24	View precise location of 100.87.15.24 on the map!
100.87.15.1	View precise location of 100.87.15.1 on the map!
100.87.15.87	View precise location of 100.87.15.87 on the map!
100.87.15.66	View precise location of 100.87.15.66 on the map!
100.87.15.115	View precise location of 100.87.15.115 on the map!
100.87.15.212	View precise location of 100.87.15.212 on the map!
100.87.15.221	View precise location of 100.87.15.221 on the map!
100.87.15.84	View precise location of 100.87.15.84 on the map!
100.87.15.82	View precise location of 100.87.15.82 on the map!
100.87.15.58	View precise location of 100.87.15.58 on the map!
100.87.15.29	View precise location of 100.87.15.29 on the map!

10 Random IPs

238.250.6.111	Find precise map location of 238.250.6.111
44.23.83.192	Find precise map location of 44.23.83.192
236.142.110.14	Find precise map location of 236.142.110.14
164.233.192.148	Find precise map location of 164.233.192.148
132.152.185.14	Find precise map location of 132.152.185.14
37.190.201.171	Find precise map location of 37.190.201.171
128.33.29.10	Find precise map location of 128.33.29.10
61.203.203.143	Find precise map location of 61.203.203.143
193.108.60.7	Find precise map location of 193.108.60.7
124.24.106.209	Find precise map location of 124.24.106.209
18.203.204.2	Find precise map location of 18.203.204.2

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