Comcast, at least in my neck of the woods, hands out /56s.
On 12/19/17 4:03 PM, Grant Taylor via NANOG wrote:
On 12/19/2017 01:55 PM, William Herrin wrote:
Providers assigning a single /64 or a /128 to an always-on customer are
doing it wrong. You know who you are.
The cable ISP that I had (prior to moving) assigned a single /64 for the
outside of the router. I could also request provider delegation for
something that I could use internally breaking into multiple /64s. I
just don't remember if it was a /56 or /60.
The point being that the outside of the SOHO router and the inside PD
were two different DHCP processes, both of which needed to happen.