23.17.21 is a class C of IPs

Sample IPs from the class C 23.17.21

23.17.21.158	View precise location of 23.17.21.158 on the map!
23.17.21.95	View precise location of 23.17.21.95 on the map!
23.17.21.11	View precise location of 23.17.21.11 on the map!
23.17.21.4	View precise location of 23.17.21.4 on the map!
23.17.21.94	View precise location of 23.17.21.94 on the map!
23.17.21.45	View precise location of 23.17.21.45 on the map!
23.17.21.45	View precise location of 23.17.21.45 on the map!
23.17.21.240	View precise location of 23.17.21.240 on the map!
23.17.21.61	View precise location of 23.17.21.61 on the map!
23.17.21.130	View precise location of 23.17.21.130 on the map!
23.17.21.56	View precise location of 23.17.21.56 on the map!

10 Random IPs

97.208.231.41	Find precise map location of 97.208.231.41
21.241.254.165	Find precise map location of 21.241.254.165
246.58.105.114	Find precise map location of 246.58.105.114
134.57.145.223	Find precise map location of 134.57.145.223
236.168.127.75	Find precise map location of 236.168.127.75
129.86.123.18	Find precise map location of 129.86.123.18
115.192.63.62	Find precise map location of 115.192.63.62
58.242.89.176	Find precise map location of 58.242.89.176
234.241.165.72	Find precise map location of 234.241.165.72
116.248.244.44	Find precise map location of 116.248.244.44
140.22.165.88	Find precise map location of 140.22.165.88

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