81.148.209 is a class C of IPs

Sample IPs from the class C 81.148.209

81.148.209.14	View precise location of 81.148.209.14 on the map!
81.148.209.133	View precise location of 81.148.209.133 on the map!
81.148.209.166	View precise location of 81.148.209.166 on the map!
81.148.209.158	View precise location of 81.148.209.158 on the map!
81.148.209.124	View precise location of 81.148.209.124 on the map!
81.148.209.114	View precise location of 81.148.209.114 on the map!
81.148.209.153	View precise location of 81.148.209.153 on the map!
81.148.209.60	View precise location of 81.148.209.60 on the map!
81.148.209.117	View precise location of 81.148.209.117 on the map!
81.148.209.3	View precise location of 81.148.209.3 on the map!
81.148.209.154	View precise location of 81.148.209.154 on the map!

10 Random IPs

53.10.57.163	Find precise map location of 53.10.57.163
125.32.215.71	Find precise map location of 125.32.215.71
16.91.33.226	Find precise map location of 16.91.33.226
3.38.103.42	Find precise map location of 3.38.103.42
111.174.250.171	Find precise map location of 111.174.250.171
19.98.201.99	Find precise map location of 19.98.201.99
81.133.34.222	Find precise map location of 81.133.34.222
106.107.102.147	Find precise map location of 106.107.102.147
214.139.56.218	Find precise map location of 214.139.56.218
34.141.178.78	Find precise map location of 34.141.178.78
192.11.130.25	Find precise map location of 192.11.130.25

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