172.57.9 is a class C of IPs

Sample IPs from the class C 172.57.9

172.57.9.33	View precise location of 172.57.9.33 on the map!
172.57.9.240	View precise location of 172.57.9.240 on the map!
172.57.9.8	View precise location of 172.57.9.8 on the map!
172.57.9.177	View precise location of 172.57.9.177 on the map!
172.57.9.86	View precise location of 172.57.9.86 on the map!
172.57.9.175	View precise location of 172.57.9.175 on the map!
172.57.9.195	View precise location of 172.57.9.195 on the map!
172.57.9.173	View precise location of 172.57.9.173 on the map!
172.57.9.101	View precise location of 172.57.9.101 on the map!
172.57.9.13	View precise location of 172.57.9.13 on the map!
172.57.9.72	View precise location of 172.57.9.72 on the map!

10 Random IPs

198.99.205.150	Find precise map location of 198.99.205.150
69.7.38.190	Find precise map location of 69.7.38.190
78.54.218.2	Find precise map location of 78.54.218.2
117.106.127.74	Find precise map location of 117.106.127.74
129.183.61.200	Find precise map location of 129.183.61.200
125.8.168.11	Find precise map location of 125.8.168.11
195.43.233.152	Find precise map location of 195.43.233.152
147.171.60.149	Find precise map location of 147.171.60.149
42.216.14.50	Find precise map location of 42.216.14.50
224.44.155.217	Find precise map location of 224.44.155.217
232.132.156.240	Find precise map location of 232.132.156.240

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