21.149.61 is a class C of IPs

Sample IPs from the class C 21.149.61

21.149.61.196	View precise location of 21.149.61.196 on the map!
21.149.61.101	View precise location of 21.149.61.101 on the map!
21.149.61.67	View precise location of 21.149.61.67 on the map!
21.149.61.220	View precise location of 21.149.61.220 on the map!
21.149.61.166	View precise location of 21.149.61.166 on the map!
21.149.61.16	View precise location of 21.149.61.16 on the map!
21.149.61.23	View precise location of 21.149.61.23 on the map!
21.149.61.11	View precise location of 21.149.61.11 on the map!
21.149.61.227	View precise location of 21.149.61.227 on the map!
21.149.61.238	View precise location of 21.149.61.238 on the map!
21.149.61.193	View precise location of 21.149.61.193 on the map!

10 Random IPs

100.98.82.83	Find precise map location of 100.98.82.83
112.206.178.148	Find precise map location of 112.206.178.148
71.159.31.27	Find precise map location of 71.159.31.27
138.57.122.60	Find precise map location of 138.57.122.60
202.146.191.121	Find precise map location of 202.146.191.121
36.168.95.75	Find precise map location of 36.168.95.75
44.38.128.73	Find precise map location of 44.38.128.73
48.184.2.169	Find precise map location of 48.184.2.169
32.205.129.206	Find precise map location of 32.205.129.206
15.101.42.123	Find precise map location of 15.101.42.123
53.198.4.81	Find precise map location of 53.198.4.81

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