57.67.66 is a class C of IPs

Sample IPs from the class C 57.67.66

57.67.66.175	View precise location of 57.67.66.175 on the map!
57.67.66.113	View precise location of 57.67.66.113 on the map!
57.67.66.73	View precise location of 57.67.66.73 on the map!
57.67.66.87	View precise location of 57.67.66.87 on the map!
57.67.66.72	View precise location of 57.67.66.72 on the map!
57.67.66.119	View precise location of 57.67.66.119 on the map!
57.67.66.129	View precise location of 57.67.66.129 on the map!
57.67.66.184	View precise location of 57.67.66.184 on the map!
57.67.66.108	View precise location of 57.67.66.108 on the map!
57.67.66.90	View precise location of 57.67.66.90 on the map!
57.67.66.56	View precise location of 57.67.66.56 on the map!

10 Random IPs

230.86.132.156	Find precise map location of 230.86.132.156
88.135.19.202	Find precise map location of 88.135.19.202
96.202.26.92	Find precise map location of 96.202.26.92
233.49.109.226	Find precise map location of 233.49.109.226
34.6.41.158	Find precise map location of 34.6.41.158
56.205.153.9	Find precise map location of 56.205.153.9
138.100.117.30	Find precise map location of 138.100.117.30
51.60.122.88	Find precise map location of 51.60.122.88
112.218.174.231	Find precise map location of 112.218.174.231
113.5.100.50	Find precise map location of 113.5.100.50
18.176.74.241	Find precise map location of 18.176.74.241

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