18.81.90 is a class C of IPs

Sample IPs from the class C 18.81.90

18.81.90.128	View precise location of 18.81.90.128 on the map!
18.81.90.229	View precise location of 18.81.90.229 on the map!
18.81.90.192	View precise location of 18.81.90.192 on the map!
18.81.90.124	View precise location of 18.81.90.124 on the map!
18.81.90.93	View precise location of 18.81.90.93 on the map!
18.81.90.91	View precise location of 18.81.90.91 on the map!
18.81.90.182	View precise location of 18.81.90.182 on the map!
18.81.90.227	View precise location of 18.81.90.227 on the map!
18.81.90.127	View precise location of 18.81.90.127 on the map!
18.81.90.191	View precise location of 18.81.90.191 on the map!
18.81.90.245	View precise location of 18.81.90.245 on the map!

10 Random IPs

131.68.35.22	Find precise map location of 131.68.35.22
253.71.229.108	Find precise map location of 253.71.229.108
218.246.164.23	Find precise map location of 218.246.164.23
146.137.166.72	Find precise map location of 146.137.166.72
114.43.183.181	Find precise map location of 114.43.183.181
197.116.86.238	Find precise map location of 197.116.86.238
26.245.179.182	Find precise map location of 26.245.179.182
99.95.119.73	Find precise map location of 99.95.119.73
92.30.112.122	Find precise map location of 92.30.112.122
129.8.107.12	Find precise map location of 129.8.107.12
132.19.154.176	Find precise map location of 132.19.154.176

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