183.21.135 is a class C of IPs

Sample IPs from the class C 183.21.135

183.21.135.4	View precise location of 183.21.135.4 on the map!
183.21.135.57	View precise location of 183.21.135.57 on the map!
183.21.135.204	View precise location of 183.21.135.204 on the map!
183.21.135.45	View precise location of 183.21.135.45 on the map!
183.21.135.10	View precise location of 183.21.135.10 on the map!
183.21.135.142	View precise location of 183.21.135.142 on the map!
183.21.135.179	View precise location of 183.21.135.179 on the map!
183.21.135.183	View precise location of 183.21.135.183 on the map!
183.21.135.134	View precise location of 183.21.135.134 on the map!
183.21.135.19	View precise location of 183.21.135.19 on the map!
183.21.135.18	View precise location of 183.21.135.18 on the map!

10 Random IPs

81.43.167.247	Find precise map location of 81.43.167.247
61.106.85.186	Find precise map location of 61.106.85.186
115.141.46.151	Find precise map location of 115.141.46.151
173.150.236.76	Find precise map location of 173.150.236.76
70.61.238.206	Find precise map location of 70.61.238.206
84.11.252.204	Find precise map location of 84.11.252.204
83.201.159.239	Find precise map location of 83.201.159.239
108.22.135.180	Find precise map location of 108.22.135.180
194.253.218.41	Find precise map location of 194.253.218.41
30.248.142.154	Find precise map location of 30.248.142.154
12.232.95.202	Find precise map location of 12.232.95.202

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