128.13.123 is a class C of IPs

Sample IPs from the class C 128.13.123

128.13.123.4	View precise location of 128.13.123.4 on the map!
128.13.123.123	View precise location of 128.13.123.123 on the map!
128.13.123.86	View precise location of 128.13.123.86 on the map!
128.13.123.77	View precise location of 128.13.123.77 on the map!
128.13.123.16	View precise location of 128.13.123.16 on the map!
128.13.123.9	View precise location of 128.13.123.9 on the map!
128.13.123.30	View precise location of 128.13.123.30 on the map!
128.13.123.126	View precise location of 128.13.123.126 on the map!
128.13.123.91	View precise location of 128.13.123.91 on the map!
128.13.123.6	View precise location of 128.13.123.6 on the map!
128.13.123.68	View precise location of 128.13.123.68 on the map!

10 Random IPs

176.71.6.152	Find precise map location of 176.71.6.152
219.166.155.82	Find precise map location of 219.166.155.82
138.89.194.221	Find precise map location of 138.89.194.221
209.158.249.90	Find precise map location of 209.158.249.90
159.49.77.10	Find precise map location of 159.49.77.10
113.220.80.20	Find precise map location of 113.220.80.20
146.229.82.39	Find precise map location of 146.229.82.39
5.171.108.127	Find precise map location of 5.171.108.127
101.130.175.32	Find precise map location of 101.130.175.32
61.152.83.216	Find precise map location of 61.152.83.216
56.150.204.194	Find precise map location of 56.150.204.194

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