48.21.172 is a class C of IPs

Sample IPs from the class C 48.21.172

48.21.172.101	View precise location of 48.21.172.101 on the map!
48.21.172.52	View precise location of 48.21.172.52 on the map!
48.21.172.40	View precise location of 48.21.172.40 on the map!
48.21.172.8	View precise location of 48.21.172.8 on the map!
48.21.172.33	View precise location of 48.21.172.33 on the map!
48.21.172.121	View precise location of 48.21.172.121 on the map!
48.21.172.149	View precise location of 48.21.172.149 on the map!
48.21.172.22	View precise location of 48.21.172.22 on the map!
48.21.172.37	View precise location of 48.21.172.37 on the map!
48.21.172.8	View precise location of 48.21.172.8 on the map!
48.21.172.85	View precise location of 48.21.172.85 on the map!

10 Random IPs

22.127.221.159	Find precise map location of 22.127.221.159
37.40.228.169	Find precise map location of 37.40.228.169
26.159.176.175	Find precise map location of 26.159.176.175
185.98.82.167	Find precise map location of 185.98.82.167
150.211.227.167	Find precise map location of 150.211.227.167
181.124.117.129	Find precise map location of 181.124.117.129
198.19.154.18	Find precise map location of 198.19.154.18
138.122.82.62	Find precise map location of 138.122.82.62
244.121.11.101	Find precise map location of 244.121.11.101
148.151.14.114	Find precise map location of 148.151.14.114
167.44.13.231	Find precise map location of 167.44.13.231

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