[bouncingbunny]

If you're talking about the RIPE region, then; - Can I request a /48 or larger IPv6 prefix from my sponsor LIR -> Yes. Something bigger than a /48 might be hard, but /48 shouldn't be any problems. - Can such IPv6 prefix be further distributed to customers? -> No. A IPv6 PI assignment can only be used by yourself and your own infrastructure and not assigned to customers[0].

Other RIRs will have the information on their website, or your sponsoring LIR will be able to answer any questions :)

[0] https://www.ripe.net/publications/docs/ripe-738 section 7

[candl]

Thank you. Just to make things clear, customer from section 7 also equals end user? That is, if I were given for example a /48 from a sponsor LIR then I am forbidden to divide that and delegate resulting prefixes via DHCP/PPPOE to end user CPEs to whom I want to simply provide dual stack internet access?

[bauruine]

Yes that's exactly whats not allowed for PI space. But you can get a PA subnet from your sponsoring LIR and use that for your end users.