228.91.83 is a class C of IPs

Sample IPs from the class C 228.91.83

228.91.83.8	View precise location of 228.91.83.8 on the map!
228.91.83.253	View precise location of 228.91.83.253 on the map!
228.91.83.17	View precise location of 228.91.83.17 on the map!
228.91.83.209	View precise location of 228.91.83.209 on the map!
228.91.83.187	View precise location of 228.91.83.187 on the map!
228.91.83.64	View precise location of 228.91.83.64 on the map!
228.91.83.121	View precise location of 228.91.83.121 on the map!
228.91.83.50	View precise location of 228.91.83.50 on the map!
228.91.83.252	View precise location of 228.91.83.252 on the map!
228.91.83.93	View precise location of 228.91.83.93 on the map!
228.91.83.50	View precise location of 228.91.83.50 on the map!

10 Random IPs

147.82.109.241	Find precise map location of 147.82.109.241
251.31.176.102	Find precise map location of 251.31.176.102
49.132.61.189	Find precise map location of 49.132.61.189
58.37.139.126	Find precise map location of 58.37.139.126
243.237.103.121	Find precise map location of 243.237.103.121
115.108.243.216	Find precise map location of 115.108.243.216
140.234.40.178	Find precise map location of 140.234.40.178
164.44.35.88	Find precise map location of 164.44.35.88
230.46.96.201	Find precise map location of 230.46.96.201
231.250.76.106	Find precise map location of 231.250.76.106
189.30.213.35	Find precise map location of 189.30.213.35

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