255.13.187 is a class C of IPs

Sample IPs from the class C 255.13.187

255.13.187.136	View precise location of 255.13.187.136 on the map!
255.13.187.54	View precise location of 255.13.187.54 on the map!
255.13.187.108	View precise location of 255.13.187.108 on the map!
255.13.187.15	View precise location of 255.13.187.15 on the map!
255.13.187.225	View precise location of 255.13.187.225 on the map!
255.13.187.109	View precise location of 255.13.187.109 on the map!
255.13.187.102	View precise location of 255.13.187.102 on the map!
255.13.187.165	View precise location of 255.13.187.165 on the map!
255.13.187.65	View precise location of 255.13.187.65 on the map!
255.13.187.135	View precise location of 255.13.187.135 on the map!
255.13.187.6	View precise location of 255.13.187.6 on the map!

10 Random IPs

55.192.190.56	Find precise map location of 55.192.190.56
189.109.176.85	Find precise map location of 189.109.176.85
241.187.28.12	Find precise map location of 241.187.28.12
214.241.88.213	Find precise map location of 214.241.88.213
54.227.59.103	Find precise map location of 54.227.59.103
226.1.24.55	Find precise map location of 226.1.24.55
178.143.169.190	Find precise map location of 178.143.169.190
111.74.33.119	Find precise map location of 111.74.33.119
224.81.52.171	Find precise map location of 224.81.52.171
220.23.22.19	Find precise map location of 220.23.22.19
141.34.7.11	Find precise map location of 141.34.7.11

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