18.139.13 is a class C of IPs

Sample IPs from the class C 18.139.13

18.139.13.15	View precise location of 18.139.13.15 on the map!
18.139.13.178	View precise location of 18.139.13.178 on the map!
18.139.13.157	View precise location of 18.139.13.157 on the map!
18.139.13.51	View precise location of 18.139.13.51 on the map!
18.139.13.92	View precise location of 18.139.13.92 on the map!
18.139.13.23	View precise location of 18.139.13.23 on the map!
18.139.13.79	View precise location of 18.139.13.79 on the map!
18.139.13.204	View precise location of 18.139.13.204 on the map!
18.139.13.90	View precise location of 18.139.13.90 on the map!
18.139.13.123	View precise location of 18.139.13.123 on the map!
18.139.13.143	View precise location of 18.139.13.143 on the map!

10 Random IPs

156.218.146.183	Find precise map location of 156.218.146.183
172.39.19.24	Find precise map location of 172.39.19.24
108.79.141.250	Find precise map location of 108.79.141.250
136.49.194.15	Find precise map location of 136.49.194.15
116.39.118.29	Find precise map location of 116.39.118.29
215.121.42.17	Find precise map location of 215.121.42.17
127.116.104.83	Find precise map location of 127.116.104.83
117.243.255.76	Find precise map location of 117.243.255.76
135.212.56.169	Find precise map location of 135.212.56.169
165.75.199.68	Find precise map location of 165.75.199.68
86.50.141.6	Find precise map location of 86.50.141.6

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