Hi Toussaint,
I think that the reason why they want an ARIN ASN is because they are under impression that 44net addresses are ARIN addresses. Usually you don't announce a prefix outside it's RIR area. 44net predates ARIN, in which case should not be limited by such rules.
And yes, RIPE NCC provides ASNs to people without IPv4, you can buy one from LIRs, they often gives you a /48 of IPv6 for free. Most of them will charge you a one time fee around 100 EUR.
It is just my belief that ASNs should be used whenever possible, since you are an actually running autonomous system, so why not put yourself in front of it?
Quan BH1XQV
On 2/21/20 6:32 PM, Toussaint OTTAVI via 44Net wrote:
Is an ARIN ASN number mandatory in such a situation ? If not mandatory, would it be a good practice to have one ? If so, would RIPE deliver ASN numbers to people or companies that do not own any IPv4 range (I am not the owner of my 44 subnet, ARDC just grants me the right to announce it) ?