126.21.207 is a class C of IPs

Sample IPs from the class C 126.21.207

126.21.207.194	View precise location of 126.21.207.194 on the map!
126.21.207.255	View precise location of 126.21.207.255 on the map!
126.21.207.15	View precise location of 126.21.207.15 on the map!
126.21.207.161	View precise location of 126.21.207.161 on the map!
126.21.207.117	View precise location of 126.21.207.117 on the map!
126.21.207.103	View precise location of 126.21.207.103 on the map!
126.21.207.152	View precise location of 126.21.207.152 on the map!
126.21.207.27	View precise location of 126.21.207.27 on the map!
126.21.207.222	View precise location of 126.21.207.222 on the map!
126.21.207.130	View precise location of 126.21.207.130 on the map!
126.21.207.223	View precise location of 126.21.207.223 on the map!

10 Random IPs

23.34.59.177	Find precise map location of 23.34.59.177
63.22.74.135	Find precise map location of 63.22.74.135
117.102.23.36	Find precise map location of 117.102.23.36
134.38.209.124	Find precise map location of 134.38.209.124
158.47.156.208	Find precise map location of 158.47.156.208
253.39.23.105	Find precise map location of 253.39.23.105
111.41.70.26	Find precise map location of 111.41.70.26
34.139.144.84	Find precise map location of 34.139.144.84
148.191.84.149	Find precise map location of 148.191.84.149
42.93.59.50	Find precise map location of 42.93.59.50
196.223.129.239	Find precise map location of 196.223.129.239

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