13.42.137 is a class C of IPs

Sample IPs from the class C 13.42.137

13.42.137.112	View precise location of 13.42.137.112 on the map!
13.42.137.249	View precise location of 13.42.137.249 on the map!
13.42.137.212	View precise location of 13.42.137.212 on the map!
13.42.137.104	View precise location of 13.42.137.104 on the map!
13.42.137.43	View precise location of 13.42.137.43 on the map!
13.42.137.67	View precise location of 13.42.137.67 on the map!
13.42.137.43	View precise location of 13.42.137.43 on the map!
13.42.137.223	View precise location of 13.42.137.223 on the map!
13.42.137.241	View precise location of 13.42.137.241 on the map!
13.42.137.71	View precise location of 13.42.137.71 on the map!
13.42.137.235	View precise location of 13.42.137.235 on the map!

10 Random IPs

128.110.74.223	Find precise map location of 128.110.74.223
96.208.101.109	Find precise map location of 96.208.101.109
116.166.175.101	Find precise map location of 116.166.175.101
196.1.209.127	Find precise map location of 196.1.209.127
239.227.172.122	Find precise map location of 239.227.172.122
81.140.200.243	Find precise map location of 81.140.200.243
124.247.128.41	Find precise map location of 124.247.128.41
95.28.126.247	Find precise map location of 95.28.126.247
41.50.39.111	Find precise map location of 41.50.39.111
59.76.208.107	Find precise map location of 59.76.208.107
209.76.93.238	Find precise map location of 209.76.93.238

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