137.166.19 is a class C of IPs

Sample IPs from the class C 137.166.19

137.166.19.30	View precise location of 137.166.19.30 on the map!
137.166.19.35	View precise location of 137.166.19.35 on the map!
137.166.19.205	View precise location of 137.166.19.205 on the map!
137.166.19.69	View precise location of 137.166.19.69 on the map!
137.166.19.159	View precise location of 137.166.19.159 on the map!
137.166.19.138	View precise location of 137.166.19.138 on the map!
137.166.19.113	View precise location of 137.166.19.113 on the map!
137.166.19.137	View precise location of 137.166.19.137 on the map!
137.166.19.27	View precise location of 137.166.19.27 on the map!
137.166.19.1	View precise location of 137.166.19.1 on the map!
137.166.19.62	View precise location of 137.166.19.62 on the map!

10 Random IPs

28.142.194.59	Find precise map location of 28.142.194.59
173.168.105.125	Find precise map location of 173.168.105.125
234.1.216.135	Find precise map location of 234.1.216.135
246.111.156.54	Find precise map location of 246.111.156.54
169.88.75.49	Find precise map location of 169.88.75.49
82.161.82.216	Find precise map location of 82.161.82.216
105.17.182.6	Find precise map location of 105.17.182.6
217.215.9.35	Find precise map location of 217.215.9.35
23.137.242.103	Find precise map location of 23.137.242.103
253.224.179.232	Find precise map location of 253.224.179.232
135.127.156.17	Find precise map location of 135.127.156.17

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