5.81.20 is a class C of IPs

Sample IPs from the class C 5.81.20

5.81.20.18	View precise location of 5.81.20.18 on the map!
5.81.20.173	View precise location of 5.81.20.173 on the map!
5.81.20.218	View precise location of 5.81.20.218 on the map!
5.81.20.62	View precise location of 5.81.20.62 on the map!
5.81.20.188	View precise location of 5.81.20.188 on the map!
5.81.20.31	View precise location of 5.81.20.31 on the map!
5.81.20.48	View precise location of 5.81.20.48 on the map!
5.81.20.174	View precise location of 5.81.20.174 on the map!
5.81.20.142	View precise location of 5.81.20.142 on the map!
5.81.20.213	View precise location of 5.81.20.213 on the map!
5.81.20.18	View precise location of 5.81.20.18 on the map!

10 Random IPs

29.136.51.69	Find precise map location of 29.136.51.69
90.123.213.76	Find precise map location of 90.123.213.76
4.101.131.95	Find precise map location of 4.101.131.95
198.240.39.61	Find precise map location of 198.240.39.61
121.169.2.156	Find precise map location of 121.169.2.156
75.189.198.7	Find precise map location of 75.189.198.7
126.147.68.35	Find precise map location of 126.147.68.35
252.34.163.95	Find precise map location of 252.34.163.95
170.28.88.154	Find precise map location of 170.28.88.154
147.199.130.98	Find precise map location of 147.199.130.98
24.250.48.135	Find precise map location of 24.250.48.135

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