87.77.13 is a class C of IPs

Sample IPs from the class C 87.77.13

87.77.13.4	View precise location of 87.77.13.4 on the map!
87.77.13.206	View precise location of 87.77.13.206 on the map!
87.77.13.228	View precise location of 87.77.13.228 on the map!
87.77.13.29	View precise location of 87.77.13.29 on the map!
87.77.13.234	View precise location of 87.77.13.234 on the map!
87.77.13.237	View precise location of 87.77.13.237 on the map!
87.77.13.229	View precise location of 87.77.13.229 on the map!
87.77.13.131	View precise location of 87.77.13.131 on the map!
87.77.13.221	View precise location of 87.77.13.221 on the map!
87.77.13.107	View precise location of 87.77.13.107 on the map!
87.77.13.222	View precise location of 87.77.13.222 on the map!

10 Random IPs

37.217.88.152	Find precise map location of 37.217.88.152
104.135.8.180	Find precise map location of 104.135.8.180
60.248.52.249	Find precise map location of 60.248.52.249
44.36.255.226	Find precise map location of 44.36.255.226
58.138.79.5	Find precise map location of 58.138.79.5
35.254.220.235	Find precise map location of 35.254.220.235
130.6.91.37	Find precise map location of 130.6.91.37
142.7.100.214	Find precise map location of 142.7.100.214
172.17.8.136	Find precise map location of 172.17.8.136
194.250.170.227	Find precise map location of 194.250.170.227
251.180.76.211	Find precise map location of 251.180.76.211

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