58.121.18 is a class C of IPs

Sample IPs from the class C 58.121.18

58.121.18.158	View precise location of 58.121.18.158 on the map!
58.121.18.71	View precise location of 58.121.18.71 on the map!
58.121.18.75	View precise location of 58.121.18.75 on the map!
58.121.18.51	View precise location of 58.121.18.51 on the map!
58.121.18.94	View precise location of 58.121.18.94 on the map!
58.121.18.102	View precise location of 58.121.18.102 on the map!
58.121.18.100	View precise location of 58.121.18.100 on the map!
58.121.18.34	View precise location of 58.121.18.34 on the map!
58.121.18.205	View precise location of 58.121.18.205 on the map!
58.121.18.70	View precise location of 58.121.18.70 on the map!
58.121.18.51	View precise location of 58.121.18.51 on the map!

10 Random IPs

249.73.243.243	Find precise map location of 249.73.243.243
61.147.217.61	Find precise map location of 61.147.217.61
202.21.237.26	Find precise map location of 202.21.237.26
205.190.17.38	Find precise map location of 205.190.17.38
77.45.149.114	Find precise map location of 77.45.149.114
209.19.28.174	Find precise map location of 209.19.28.174
222.29.10.73	Find precise map location of 222.29.10.73
94.98.145.80	Find precise map location of 94.98.145.80
121.46.41.86	Find precise map location of 121.46.41.86
206.62.211.7	Find precise map location of 206.62.211.7
73.81.198.88	Find precise map location of 73.81.198.88

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