13.20.13 is a class C of IPs

Sample IPs from the class C 13.20.13

13.20.13.80	View precise location of 13.20.13.80 on the map!
13.20.13.228	View precise location of 13.20.13.228 on the map!
13.20.13.248	View precise location of 13.20.13.248 on the map!
13.20.13.187	View precise location of 13.20.13.187 on the map!
13.20.13.249	View precise location of 13.20.13.249 on the map!
13.20.13.76	View precise location of 13.20.13.76 on the map!
13.20.13.139	View precise location of 13.20.13.139 on the map!
13.20.13.182	View precise location of 13.20.13.182 on the map!
13.20.13.109	View precise location of 13.20.13.109 on the map!
13.20.13.29	View precise location of 13.20.13.29 on the map!
13.20.13.29	View precise location of 13.20.13.29 on the map!

10 Random IPs

226.122.245.231	Find precise map location of 226.122.245.231
106.233.174.188	Find precise map location of 106.233.174.188
253.199.212.189	Find precise map location of 253.199.212.189
4.54.84.249	Find precise map location of 4.54.84.249
228.229.157.157	Find precise map location of 228.229.157.157
169.204.199.219	Find precise map location of 169.204.199.219
1.23.224.8	Find precise map location of 1.23.224.8
128.39.248.55	Find precise map location of 128.39.248.55
246.39.97.7	Find precise map location of 246.39.97.7
107.180.191.43	Find precise map location of 107.180.191.43
219.131.126.110	Find precise map location of 219.131.126.110

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