[devillius]

The recommendation is to assign a /56 to end users from an ISP. That would give you plenty of subnets to work with.

/56 == 256 /64s Each /64 == 18,446,744,073,709,551,616 addresses

[gerdesj]

I have a pretty good ISP - I get a /56 but the original idea was /48 for everyone. I only have 256 subnets available. With /48 I would have say 256 x 256 subnets which would be ideal for my family. With /56 I have very little elbow room.

Each subnet (/64) is 18,446,744,073,709,551,616 addresses - which is nice.

[kiallmacinnes]

Sadly, plenty of ISPs use DS-Lite with a single /64 issued.

(I'm looking at you UPC/Virgin Media/Liberty Global)

[Bombthecat]

Vodafone cable in germany does the same..