121.253.126 is a class C of IPs

Sample IPs from the class C 121.253.126

121.253.126.61	View precise location of 121.253.126.61 on the map!
121.253.126.78	View precise location of 121.253.126.78 on the map!
121.253.126.189	View precise location of 121.253.126.189 on the map!
121.253.126.84	View precise location of 121.253.126.84 on the map!
121.253.126.230	View precise location of 121.253.126.230 on the map!
121.253.126.35	View precise location of 121.253.126.35 on the map!
121.253.126.107	View precise location of 121.253.126.107 on the map!
121.253.126.209	View precise location of 121.253.126.209 on the map!
121.253.126.72	View precise location of 121.253.126.72 on the map!
121.253.126.119	View precise location of 121.253.126.119 on the map!
121.253.126.213	View precise location of 121.253.126.213 on the map!

10 Random IPs

74.52.215.112	Find precise map location of 74.52.215.112
38.141.220.223	Find precise map location of 38.141.220.223
35.68.62.247	Find precise map location of 35.68.62.247
108.26.229.240	Find precise map location of 108.26.229.240
151.13.39.202	Find precise map location of 151.13.39.202
113.173.55.224	Find precise map location of 113.173.55.224
134.180.186.30	Find precise map location of 134.180.186.30
136.177.26.96	Find precise map location of 136.177.26.96
166.192.60.101	Find precise map location of 166.192.60.101
143.98.170.196	Find precise map location of 143.98.170.196
169.75.5.65	Find precise map location of 169.75.5.65

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