Current Consensus on IPv6 Customer Allocation Size

Mikael Abrahamsson swmike at
Thu Aug 2 12:31:19 CEST 2012

On Thu, 2 Aug 2012, Mark Blackman wrote:

> They're going to need a much bigger IPv6 allocation to give all ~2^26 
> customers a /48 allocation, and they can't even quite give them all a 
> /56 out of their current allocation.

It gets interesting if every mobile device should get a /48 as well, then 
we're going to be spending a /14 on this (2^34 is 16G, 48-34=14.

Question, with growth and room for efficient routing, I'd imagine people 
will need to start talking to their RIR to get larger subnets. Will the 
RIRs accept these calculations and approve these sizes?

Mikael Abrahamsson    email: swmike at

More information about the ipv6-ops mailing list