131.121 is a class B of IPs

Sample IPs from the class B 131.121

131.121.251.251	View precise location of 131.121.251.251 on the map!
131.121.232.217	View precise location of 131.121.232.217 on the map!
131.121.88.184	View precise location of 131.121.88.184 on the map!
131.121.83.247	View precise location of 131.121.83.247 on the map!
131.121.123.16	View precise location of 131.121.123.16 on the map!
131.121.165.107	View precise location of 131.121.165.107 on the map!
131.121.170.94	View precise location of 131.121.170.94 on the map!
131.121.182.82	View precise location of 131.121.182.82 on the map!
131.121.208.119	View precise location of 131.121.208.119 on the map!
131.121.160.134	View precise location of 131.121.160.134 on the map!
131.121.243.13	View precise location of 131.121.243.13 on the map!

10 Random IPs

81.179.113.59	Find precise map location of 81.179.113.59
52.160.82.18	Find precise map location of 52.160.82.18
110.116.221.240	Find precise map location of 110.116.221.240
231.39.39.237	Find precise map location of 231.39.39.237
79.82.58.64	Find precise map location of 79.82.58.64
210.183.107.83	Find precise map location of 210.183.107.83
167.123.147.220	Find precise map location of 167.123.147.220
208.222.106.95	Find precise map location of 208.222.106.95
94.104.44.174	Find precise map location of 94.104.44.174
111.186.140.207	Find precise map location of 111.186.140.207
191.78.95.18	Find precise map location of 191.78.95.18

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