42.21.58 is a class C of IPs

Sample IPs from the class C 42.21.58

42.21.58.216	View precise location of 42.21.58.216 on the map!
42.21.58.114	View precise location of 42.21.58.114 on the map!
42.21.58.178	View precise location of 42.21.58.178 on the map!
42.21.58.72	View precise location of 42.21.58.72 on the map!
42.21.58.36	View precise location of 42.21.58.36 on the map!
42.21.58.85	View precise location of 42.21.58.85 on the map!
42.21.58.106	View precise location of 42.21.58.106 on the map!
42.21.58.173	View precise location of 42.21.58.173 on the map!
42.21.58.94	View precise location of 42.21.58.94 on the map!
42.21.58.142	View precise location of 42.21.58.142 on the map!
42.21.58.247	View precise location of 42.21.58.247 on the map!

10 Random IPs

57.131.155.197	Find precise map location of 57.131.155.197
3.185.70.62	Find precise map location of 3.185.70.62
149.160.159.41	Find precise map location of 149.160.159.41
195.5.215.73	Find precise map location of 195.5.215.73
207.179.31.109	Find precise map location of 207.179.31.109
180.189.165.191	Find precise map location of 180.189.165.191
74.78.24.242	Find precise map location of 74.78.24.242
161.215.144.106	Find precise map location of 161.215.144.106
18.12.32.217	Find precise map location of 18.12.32.217
47.104.78.24	Find precise map location of 47.104.78.24
115.131.144.28	Find precise map location of 115.131.144.28

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