54.91.108 is a class C of IPs

Sample IPs from the class C 54.91.108

54.91.108.149	View precise location of 54.91.108.149 on the map!
54.91.108.82	View precise location of 54.91.108.82 on the map!
54.91.108.176	View precise location of 54.91.108.176 on the map!
54.91.108.104	View precise location of 54.91.108.104 on the map!
54.91.108.220	View precise location of 54.91.108.220 on the map!
54.91.108.253	View precise location of 54.91.108.253 on the map!
54.91.108.205	View precise location of 54.91.108.205 on the map!
54.91.108.34	View precise location of 54.91.108.34 on the map!
54.91.108.123	View precise location of 54.91.108.123 on the map!
54.91.108.243	View precise location of 54.91.108.243 on the map!
54.91.108.205	View precise location of 54.91.108.205 on the map!

10 Random IPs

94.146.116.151	Find precise map location of 94.146.116.151
230.180.199.72	Find precise map location of 230.180.199.72
6.200.221.36	Find precise map location of 6.200.221.36
54.57.175.205	Find precise map location of 54.57.175.205
215.58.157.164	Find precise map location of 215.58.157.164
28.69.152.96	Find precise map location of 28.69.152.96
101.135.59.48	Find precise map location of 101.135.59.48
69.74.212.24	Find precise map location of 69.74.212.24
120.96.39.146	Find precise map location of 120.96.39.146
223.133.32.6	Find precise map location of 223.133.32.6
165.199.89.243	Find precise map location of 165.199.89.243

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