129.100 is a class B of IPs

Sample IPs from the class B 129.100

129.100.139.44	View precise location of 129.100.139.44 on the map!
129.100.90.105	View precise location of 129.100.90.105 on the map!
129.100.180.22	View precise location of 129.100.180.22 on the map!
129.100.186.44	View precise location of 129.100.186.44 on the map!
129.100.159.231	View precise location of 129.100.159.231 on the map!
129.100.49.83	View precise location of 129.100.49.83 on the map!
129.100.112.244	View precise location of 129.100.112.244 on the map!
129.100.228.96	View precise location of 129.100.228.96 on the map!
129.100.118.56	View precise location of 129.100.118.56 on the map!
129.100.75.216	View precise location of 129.100.75.216 on the map!
129.100.238.149	View precise location of 129.100.238.149 on the map!

10 Random IPs

19.128.138.53	Find precise map location of 19.128.138.53
95.43.98.30	Find precise map location of 95.43.98.30
168.135.158.159	Find precise map location of 168.135.158.159
21.28.197.146	Find precise map location of 21.28.197.146
193.235.67.17	Find precise map location of 193.235.67.17
61.89.152.146	Find precise map location of 61.89.152.146
205.99.94.12	Find precise map location of 205.99.94.12
170.211.221.21	Find precise map location of 170.211.221.21
243.29.81.160	Find precise map location of 243.29.81.160
107.32.86.97	Find precise map location of 107.32.86.97
211.123.252.38	Find precise map location of 211.123.252.38

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