54.81.31 is a class C of IPs

Sample IPs from the class C 54.81.31

54.81.31.1	View precise location of 54.81.31.1 on the map!
54.81.31.224	View precise location of 54.81.31.224 on the map!
54.81.31.208	View precise location of 54.81.31.208 on the map!
54.81.31.131	View precise location of 54.81.31.131 on the map!
54.81.31.91	View precise location of 54.81.31.91 on the map!
54.81.31.157	View precise location of 54.81.31.157 on the map!
54.81.31.239	View precise location of 54.81.31.239 on the map!
54.81.31.226	View precise location of 54.81.31.226 on the map!
54.81.31.80	View precise location of 54.81.31.80 on the map!
54.81.31.71	View precise location of 54.81.31.71 on the map!
54.81.31.106	View precise location of 54.81.31.106 on the map!

10 Random IPs

140.45.146.223	Find precise map location of 140.45.146.223
24.132.193.4	Find precise map location of 24.132.193.4
63.237.146.133	Find precise map location of 63.237.146.133
200.30.218.180	Find precise map location of 200.30.218.180
133.219.159.193	Find precise map location of 133.219.159.193
12.53.209.228	Find precise map location of 12.53.209.228
155.109.146.204	Find precise map location of 155.109.146.204
75.102.62.134	Find precise map location of 75.102.62.134
62.215.121.130	Find precise map location of 62.215.121.130
121.136.180.143	Find precise map location of 121.136.180.143
221.236.166.92	Find precise map location of 221.236.166.92

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