145.172 is a class B of IPs

Sample IPs from the class B 145.172

145.172.212.231	View precise location of 145.172.212.231 on the map!
145.172.111.160	View precise location of 145.172.111.160 on the map!
145.172.138.162	View precise location of 145.172.138.162 on the map!
145.172.156.131	View precise location of 145.172.156.131 on the map!
145.172.96.53	View precise location of 145.172.96.53 on the map!
145.172.82.116	View precise location of 145.172.82.116 on the map!
145.172.164.63	View precise location of 145.172.164.63 on the map!
145.172.40.231	View precise location of 145.172.40.231 on the map!
145.172.36.32	View precise location of 145.172.36.32 on the map!
145.172.90.49	View precise location of 145.172.90.49 on the map!
145.172.119.8	View precise location of 145.172.119.8 on the map!

10 Random IPs

196.7.163.59	Find precise map location of 196.7.163.59
139.39.174.116	Find precise map location of 139.39.174.116
149.34.81.205	Find precise map location of 149.34.81.205
91.3.150.22	Find precise map location of 91.3.150.22
97.149.39.22	Find precise map location of 97.149.39.22
21.181.11.236	Find precise map location of 21.181.11.236
221.37.81.51	Find precise map location of 221.37.81.51
173.64.63.93	Find precise map location of 173.64.63.93
33.170.169.105	Find precise map location of 33.170.169.105
56.231.47.248	Find precise map location of 56.231.47.248
144.25.131.250	Find precise map location of 144.25.131.250

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