21.127 is a class B of IPs

Sample IPs from the class B 21.127

21.127.32.218	View precise location of 21.127.32.218 on the map!
21.127.45.156	View precise location of 21.127.45.156 on the map!
21.127.235.118	View precise location of 21.127.235.118 on the map!
21.127.117.127	View precise location of 21.127.117.127 on the map!
21.127.213.217	View precise location of 21.127.213.217 on the map!
21.127.105.167	View precise location of 21.127.105.167 on the map!
21.127.237.197	View precise location of 21.127.237.197 on the map!
21.127.134.9	View precise location of 21.127.134.9 on the map!
21.127.7.156	View precise location of 21.127.7.156 on the map!
21.127.196.223	View precise location of 21.127.196.223 on the map!
21.127.250.44	View precise location of 21.127.250.44 on the map!

10 Random IPs

147.173.194.39	Find precise map location of 147.173.194.39
74.126.172.156	Find precise map location of 74.126.172.156
226.217.233.94	Find precise map location of 226.217.233.94
183.205.7.53	Find precise map location of 183.205.7.53
209.199.176.30	Find precise map location of 209.199.176.30
91.65.191.104	Find precise map location of 91.65.191.104
70.210.72.24	Find precise map location of 70.210.72.24
200.138.201.34	Find precise map location of 200.138.201.34
156.142.92.227	Find precise map location of 156.142.92.227
71.230.84.67	Find precise map location of 71.230.84.67
171.132.88.13	Find precise map location of 171.132.88.13

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