19.42.57 is a class C of IPs

Sample IPs from the class C 19.42.57

19.42.57.29	View precise location of 19.42.57.29 on the map!
19.42.57.174	View precise location of 19.42.57.174 on the map!
19.42.57.173	View precise location of 19.42.57.173 on the map!
19.42.57.16	View precise location of 19.42.57.16 on the map!
19.42.57.193	View precise location of 19.42.57.193 on the map!
19.42.57.138	View precise location of 19.42.57.138 on the map!
19.42.57.39	View precise location of 19.42.57.39 on the map!
19.42.57.147	View precise location of 19.42.57.147 on the map!
19.42.57.74	View precise location of 19.42.57.74 on the map!
19.42.57.104	View precise location of 19.42.57.104 on the map!
19.42.57.122	View precise location of 19.42.57.122 on the map!

10 Random IPs

67.162.34.101	Find precise map location of 67.162.34.101
232.90.83.65	Find precise map location of 232.90.83.65
23.79.174.27	Find precise map location of 23.79.174.27
174.82.233.253	Find precise map location of 174.82.233.253
26.2.13.151	Find precise map location of 26.2.13.151
211.214.245.220	Find precise map location of 211.214.245.220
100.232.48.87	Find precise map location of 100.232.48.87
77.185.36.217	Find precise map location of 77.185.36.217
180.141.235.138	Find precise map location of 180.141.235.138
27.68.254.27	Find precise map location of 27.68.254.27
61.196.67.209	Find precise map location of 61.196.67.209

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