[atlas] Assigned AS vs. Advertising AS

Hi,

On Wed, Jun 29, 2022 at 10:30:22AM +0200, Simon Brandt via ripe-atlas wrote:
> Another example would be a multi ASN company which announces all
> prefixes from a single ASN via BGP, even though the prefixes are
> assigned to various AS numbers. Since the RIRs do have the information,
> to which AS a specific prefix is assigned to,

prefixes are not assigned to "AS" numbers, ever.

prefixes are assigned to entities, as are AS numbers.

ROAs and/or route(6): objects are used to tie both together - and it's
in the authority of the network (prefix) holder to state which AS is
allowed and expected to announce a given prefix, not the RIR.

Repeat: the RIR has no say in "which AS is tied a prefix".

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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