This is only applied to JP the network. US and Malaysia locations are available.
With regard to ICMP packets, restrictions are placed at the higher levels of our data center network which prevent PING tests to your virtual machine/s from the external environment.
Also, certain ports are not available for use due to restrictions.
We do not provide a list of open ports for security purposes.
Please contact support if you are considering to use a specific port at firstname.lastname@example.org