151.109.4 is a class C of IPs

Sample IPs from the class C 151.109.4

151.109.4.41	View precise location of 151.109.4.41 on the map!
151.109.4.30	View precise location of 151.109.4.30 on the map!
151.109.4.24	View precise location of 151.109.4.24 on the map!
151.109.4.65	View precise location of 151.109.4.65 on the map!
151.109.4.139	View precise location of 151.109.4.139 on the map!
151.109.4.122	View precise location of 151.109.4.122 on the map!
151.109.4.80	View precise location of 151.109.4.80 on the map!
151.109.4.227	View precise location of 151.109.4.227 on the map!
151.109.4.101	View precise location of 151.109.4.101 on the map!
151.109.4.225	View precise location of 151.109.4.225 on the map!
151.109.4.16	View precise location of 151.109.4.16 on the map!

10 Random IPs

143.162.43.254	Find precise map location of 143.162.43.254
7.135.196.150	Find precise map location of 7.135.196.150
54.101.116.30	Find precise map location of 54.101.116.30
223.248.42.217	Find precise map location of 223.248.42.217
211.232.82.172	Find precise map location of 211.232.82.172
51.223.209.76	Find precise map location of 51.223.209.76
94.22.168.248	Find precise map location of 94.22.168.248
47.73.156.189	Find precise map location of 47.73.156.189
64.211.250.77	Find precise map location of 64.211.250.77
34.136.73.158	Find precise map location of 34.136.73.158
138.253.147.6	Find precise map location of 138.253.147.6

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