251.56 is a class B of IPs

Sample IPs from the class B 251.56

251.56.17.228	View precise location of 251.56.17.228 on the map!
251.56.231.83	View precise location of 251.56.231.83 on the map!
251.56.196.68	View precise location of 251.56.196.68 on the map!
251.56.9.35	View precise location of 251.56.9.35 on the map!
251.56.169.206	View precise location of 251.56.169.206 on the map!
251.56.116.55	View precise location of 251.56.116.55 on the map!
251.56.171.15	View precise location of 251.56.171.15 on the map!
251.56.245.68	View precise location of 251.56.245.68 on the map!
251.56.79.164	View precise location of 251.56.79.164 on the map!
251.56.65.190	View precise location of 251.56.65.190 on the map!
251.56.30.143	View precise location of 251.56.30.143 on the map!

10 Random IPs

142.95.167.197	Find precise map location of 142.95.167.197
94.208.48.169	Find precise map location of 94.208.48.169
2.207.107.78	Find precise map location of 2.207.107.78
154.14.215.111	Find precise map location of 154.14.215.111
175.30.55.53	Find precise map location of 175.30.55.53
96.180.35.50	Find precise map location of 96.180.35.50
152.163.248.93	Find precise map location of 152.163.248.93
172.181.35.92	Find precise map location of 172.181.35.92
94.135.23.165	Find precise map location of 94.135.23.165
81.85.226.127	Find precise map location of 81.85.226.127
47.114.167.169	Find precise map location of 47.114.167.169

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