On 2023-04-28 14:56, Per Jessen wrote:

If they're handing out /56, that's 256 /64s.  Also, if they're doing
that, then they must expect the customer to be able to do that, which
means using something other than the gateway they provide.

I wonder if it might be "reserved for future use" (or words to that
effect).  Here, we had our energy meters (electricity, gas, water)
wired up to the fibre last year, but they use a separate fibre.  If
Carlos has just the one, it might be sensible to add some networks "in
reserve".

I don't know about his ISP, but with mine, I get whatever size I request, from a single /64 to 256. There's a box in pfSense where you request the prefix size you want. The IPv6 address space is so huge, there's no point in being stingy. In fact, some ISPs had out a /48, as does Hurricane Electric with their tunnels. That's 65536 /64s!