57.39.144 is a class C of IPs

Sample IPs from the class C 57.39.144

57.39.144.50	View precise location of 57.39.144.50 on the map!
57.39.144.109	View precise location of 57.39.144.109 on the map!
57.39.144.105	View precise location of 57.39.144.105 on the map!
57.39.144.87	View precise location of 57.39.144.87 on the map!
57.39.144.171	View precise location of 57.39.144.171 on the map!
57.39.144.66	View precise location of 57.39.144.66 on the map!
57.39.144.180	View precise location of 57.39.144.180 on the map!
57.39.144.224	View precise location of 57.39.144.224 on the map!
57.39.144.83	View precise location of 57.39.144.83 on the map!
57.39.144.186	View precise location of 57.39.144.186 on the map!
57.39.144.111	View precise location of 57.39.144.111 on the map!

10 Random IPs

86.71.167.170	Find precise map location of 86.71.167.170
29.116.78.92	Find precise map location of 29.116.78.92
165.18.31.39	Find precise map location of 165.18.31.39
16.194.208.44	Find precise map location of 16.194.208.44
235.248.252.242	Find precise map location of 235.248.252.242
186.23.235.181	Find precise map location of 186.23.235.181
250.196.13.211	Find precise map location of 250.196.13.211
103.44.78.53	Find precise map location of 103.44.78.53
168.68.239.116	Find precise map location of 168.68.239.116
86.75.211.147	Find precise map location of 86.75.211.147
139.149.110.175	Find precise map location of 139.149.110.175

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