21.220.155 is a class C of IPs

Sample IPs from the class C 21.220.155

21.220.155.113	View precise location of 21.220.155.113 on the map!
21.220.155.244	View precise location of 21.220.155.244 on the map!
21.220.155.45	View precise location of 21.220.155.45 on the map!
21.220.155.178	View precise location of 21.220.155.178 on the map!
21.220.155.137	View precise location of 21.220.155.137 on the map!
21.220.155.126	View precise location of 21.220.155.126 on the map!
21.220.155.85	View precise location of 21.220.155.85 on the map!
21.220.155.39	View precise location of 21.220.155.39 on the map!
21.220.155.124	View precise location of 21.220.155.124 on the map!
21.220.155.180	View precise location of 21.220.155.180 on the map!
21.220.155.95	View precise location of 21.220.155.95 on the map!

10 Random IPs

71.38.188.34	Find precise map location of 71.38.188.34
21.106.28.60	Find precise map location of 21.106.28.60
51.38.250.27	Find precise map location of 51.38.250.27
184.43.14.155	Find precise map location of 184.43.14.155
11.75.66.175	Find precise map location of 11.75.66.175
23.194.82.79	Find precise map location of 23.194.82.79
247.7.135.116	Find precise map location of 247.7.135.116
35.231.46.22	Find precise map location of 35.231.46.22
70.47.246.58	Find precise map location of 70.47.246.58
162.93.158.72	Find precise map location of 162.93.158.72
143.127.248.50	Find precise map location of 143.127.248.50

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