183.31.20 is a class C of IPs

Sample IPs from the class C 183.31.20

183.31.20.140	View precise location of 183.31.20.140 on the map!
183.31.20.46	View precise location of 183.31.20.46 on the map!
183.31.20.138	View precise location of 183.31.20.138 on the map!
183.31.20.139	View precise location of 183.31.20.139 on the map!
183.31.20.83	View precise location of 183.31.20.83 on the map!
183.31.20.229	View precise location of 183.31.20.229 on the map!
183.31.20.16	View precise location of 183.31.20.16 on the map!
183.31.20.83	View precise location of 183.31.20.83 on the map!
183.31.20.76	View precise location of 183.31.20.76 on the map!
183.31.20.98	View precise location of 183.31.20.98 on the map!
183.31.20.68	View precise location of 183.31.20.68 on the map!

10 Random IPs

54.166.93.175	Find precise map location of 54.166.93.175
110.72.190.131	Find precise map location of 110.72.190.131
45.171.144.44	Find precise map location of 45.171.144.44
36.221.247.150	Find precise map location of 36.221.247.150
204.107.235.50	Find precise map location of 204.107.235.50
71.135.219.119	Find precise map location of 71.135.219.119
146.206.127.255	Find precise map location of 146.206.127.255
148.8.132.117	Find precise map location of 148.8.132.117
43.47.81.79	Find precise map location of 43.47.81.79
234.242.166.151	Find precise map location of 234.242.166.151
237.208.210.65	Find precise map location of 237.208.210.65

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