81.101.18 is a class C of IPs

Sample IPs from the class C 81.101.18

81.101.18.65	View precise location of 81.101.18.65 on the map!
81.101.18.139	View precise location of 81.101.18.139 on the map!
81.101.18.54	View precise location of 81.101.18.54 on the map!
81.101.18.77	View precise location of 81.101.18.77 on the map!
81.101.18.1	View precise location of 81.101.18.1 on the map!
81.101.18.121	View precise location of 81.101.18.121 on the map!
81.101.18.225	View precise location of 81.101.18.225 on the map!
81.101.18.248	View precise location of 81.101.18.248 on the map!
81.101.18.14	View precise location of 81.101.18.14 on the map!
81.101.18.85	View precise location of 81.101.18.85 on the map!
81.101.18.156	View precise location of 81.101.18.156 on the map!

10 Random IPs

2.53.125.156	Find precise map location of 2.53.125.156
181.32.202.75	Find precise map location of 181.32.202.75
33.84.70.80	Find precise map location of 33.84.70.80
18.196.98.144	Find precise map location of 18.196.98.144
228.184.241.27	Find precise map location of 228.184.241.27
11.61.255.173	Find precise map location of 11.61.255.173
214.63.233.10	Find precise map location of 214.63.233.10
16.30.176.40	Find precise map location of 16.30.176.40
118.71.202.159	Find precise map location of 118.71.202.159
173.253.155.244	Find precise map location of 173.253.155.244
78.119.254.37	Find precise map location of 78.119.254.37

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