Hello, when i have IPv6 for my server: 2001:41d0:2:2f6f::/64
How can i know which IPv6 i can assign to virtual servers inside this server?

Is there any online tool or manager hich help to show IPs in this subnet, in my range?

--------
Here is quite good IPv6 calculator: http://www.ipv6calculator.net/

My datacenter answered the question what are my IPv6 addresses so im sharing there more people can know.

My example IP:
2001:38d0:2:8f3f::/64
=
2001:38d0:2:8f3f:0000:0000:0000:0000 - first ipv6
2001:38d0:2:8f3f:0000:0000:0000:0001 - second ipv6
2001:38d0:2:8f3f:0000:0000:0000:0002 - third ipv6
.
.
2001:38d0:2:8f3f:ffff:ffff:ffff:ffff - last ipv6

But im still unsure on how to determine out of IPv6 2001:41d0:2:2f6f::/64 what the first and last IP is?

UPDATE: this calculator can be used to output range.
and this one reports also next IPv6 usefull info (like first/last usable, broadcast ipv6, gateway ipv6

For example if u need to assign IPv6 to a VPS from your range, you start wherewer you want, i left first IP as gateway, you can start from 5th IP for example, here is how it can look like:
2001:38d0:2:8f3f::5