213.72.20 is a class C of IPs

Sample IPs from the class C 213.72.20

213.72.20.13	View precise location of 213.72.20.13 on the map!
213.72.20.254	View precise location of 213.72.20.254 on the map!
213.72.20.79	View precise location of 213.72.20.79 on the map!
213.72.20.158	View precise location of 213.72.20.158 on the map!
213.72.20.245	View precise location of 213.72.20.245 on the map!
213.72.20.239	View precise location of 213.72.20.239 on the map!
213.72.20.74	View precise location of 213.72.20.74 on the map!
213.72.20.52	View precise location of 213.72.20.52 on the map!
213.72.20.90	View precise location of 213.72.20.90 on the map!
213.72.20.41	View precise location of 213.72.20.41 on the map!
213.72.20.55	View precise location of 213.72.20.55 on the map!

10 Random IPs

45.186.205.176	Find precise map location of 45.186.205.176
24.92.173.150	Find precise map location of 24.92.173.150
247.47.199.237	Find precise map location of 247.47.199.237
244.171.205.189	Find precise map location of 244.171.205.189
229.47.228.23	Find precise map location of 229.47.228.23
204.39.239.57	Find precise map location of 204.39.239.57
82.120.159.147	Find precise map location of 82.120.159.147
125.110.57.9	Find precise map location of 125.110.57.9
247.143.214.16	Find precise map location of 247.143.214.16
45.187.12.23	Find precise map location of 45.187.12.23
107.123.216.128	Find precise map location of 107.123.216.128

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