180.121.21 is a class C of IPs

Sample IPs from the class C 180.121.21

180.121.21.247	View precise location of 180.121.21.247 on the map!
180.121.21.39	View precise location of 180.121.21.39 on the map!
180.121.21.49	View precise location of 180.121.21.49 on the map!
180.121.21.213	View precise location of 180.121.21.213 on the map!
180.121.21.199	View precise location of 180.121.21.199 on the map!
180.121.21.164	View precise location of 180.121.21.164 on the map!
180.121.21.56	View precise location of 180.121.21.56 on the map!
180.121.21.16	View precise location of 180.121.21.16 on the map!
180.121.21.88	View precise location of 180.121.21.88 on the map!
180.121.21.228	View precise location of 180.121.21.228 on the map!
180.121.21.235	View precise location of 180.121.21.235 on the map!

10 Random IPs

223.238.171.179	Find precise map location of 223.238.171.179
6.163.8.95	Find precise map location of 6.163.8.95
204.142.139.14	Find precise map location of 204.142.139.14
106.175.189.114	Find precise map location of 106.175.189.114
154.151.82.7	Find precise map location of 154.151.82.7
248.75.4.81	Find precise map location of 248.75.4.81
70.168.168.166	Find precise map location of 70.168.168.166
22.1.23.48	Find precise map location of 22.1.23.48
85.5.19.226	Find precise map location of 85.5.19.226
113.94.75.28	Find precise map location of 113.94.75.28
208.219.177.27	Find precise map location of 208.219.177.27

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