137.152.121 is a class C of IPs

Sample IPs from the class C 137.152.121

137.152.121.176	View precise location of 137.152.121.176 on the map!
137.152.121.114	View precise location of 137.152.121.114 on the map!
137.152.121.141	View precise location of 137.152.121.141 on the map!
137.152.121.191	View precise location of 137.152.121.191 on the map!
137.152.121.22	View precise location of 137.152.121.22 on the map!
137.152.121.109	View precise location of 137.152.121.109 on the map!
137.152.121.70	View precise location of 137.152.121.70 on the map!
137.152.121.99	View precise location of 137.152.121.99 on the map!
137.152.121.204	View precise location of 137.152.121.204 on the map!
137.152.121.115	View precise location of 137.152.121.115 on the map!
137.152.121.232	View precise location of 137.152.121.232 on the map!

10 Random IPs

171.40.172.149	Find precise map location of 171.40.172.149
2.66.60.104	Find precise map location of 2.66.60.104
246.45.245.55	Find precise map location of 246.45.245.55
255.238.91.247	Find precise map location of 255.238.91.247
161.191.104.134	Find precise map location of 161.191.104.134
68.170.78.43	Find precise map location of 68.170.78.43
169.169.219.123	Find precise map location of 169.169.219.123
38.90.2.28	Find precise map location of 38.90.2.28
29.91.163.68	Find precise map location of 29.91.163.68
253.89.180.103	Find precise map location of 253.89.180.103
226.145.218.190	Find precise map location of 226.145.218.190

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