230.31.21 is a class C of IPs

Sample IPs from the class C 230.31.21

230.31.21.209	View precise location of 230.31.21.209 on the map!
230.31.21.143	View precise location of 230.31.21.143 on the map!
230.31.21.120	View precise location of 230.31.21.120 on the map!
230.31.21.20	View precise location of 230.31.21.20 on the map!
230.31.21.201	View precise location of 230.31.21.201 on the map!
230.31.21.56	View precise location of 230.31.21.56 on the map!
230.31.21.41	View precise location of 230.31.21.41 on the map!
230.31.21.140	View precise location of 230.31.21.140 on the map!
230.31.21.253	View precise location of 230.31.21.253 on the map!
230.31.21.249	View precise location of 230.31.21.249 on the map!
230.31.21.10	View precise location of 230.31.21.10 on the map!

10 Random IPs

69.194.28.3	Find precise map location of 69.194.28.3
221.12.115.111	Find precise map location of 221.12.115.111
91.183.126.41	Find precise map location of 91.183.126.41
72.76.74.223	Find precise map location of 72.76.74.223
109.197.208.69	Find precise map location of 109.197.208.69
80.59.229.35	Find precise map location of 80.59.229.35
71.221.177.219	Find precise map location of 71.221.177.219
211.164.24.71	Find precise map location of 211.164.24.71
207.42.113.77	Find precise map location of 207.42.113.77
65.77.166.168	Find precise map location of 65.77.166.168
202.38.71.40	Find precise map location of 202.38.71.40

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