[address-policy-wg] Cleaning up Unused AS Numbers

Hi Laurens,

the plan below looks fine. Please go ahead.

I've got a question about the ~300 reserved 16bit ASNs (as per the 
delegated extended file). Does the RIPE NCC have any plan to bring these 
into production as well?

Kind regards,

Elvis

On 3/23/17 5:18 AM, Laurens Hoogendoorn wrote:
>
>
> Dear colleagues,
>
> As previously mentioned at RIPE 73, we are planning a project to clean
> up unused AS Numbers. You can find this presentation here:
> https://ripe73.ripe.net/archives/video/1456/
>
> According to ripe-679, "Autonomous System (AS) Number Assignment
> Policies" if an organisation no longer uses as AS Number, it should be
> returned to the free pool so it can be reassigned:
> https://www.ripe.net/publications/docs/ripe-679
>
> There are currently around 6,600 ASNs in our service region (held or
> sponsored by 2,682 LIRs) that are not being advertised in the routing
> system. This represents around 22% of the ~30,000 ASNs assigned by the
> RIPE NCC.
>
> There are a number of legitimate reasons why an ASN might not be
> advertised in the routing system. However, it is also possible that
> the holder doesn't exist anymore or the ASN is no longer needed. Not
> only should unused ASNs be returned, but it's important to clean up
> out of date registrations, which affect the quality of data in the
> RIPE Registry.
>
>
> Our Proposal
>
> We plan to email the LIR or sponsoring LIR for each unannounced ASN
> and ask if the resource is still needed. We will group together ASNs
> that are sponsored or held by the same LIR to minimise the number of
> emails.
>
> We will ask if the ASN is currently being used or if there are plans
> to start using the ASN in the coming three months. Organisations can
> always request a new ASN in the future if they need one.
>
> If we do not receive a reply or if the ASN will not be used within
> three months, we will start the process of returning the ASN to the
> free pool. The deregistration process will take three months, during
> which time the LIR can still indicate that the ASN is needed. If the
> ASN is still needed, the validity of the assignment (such as the
> multihoming requirement) will not be re-evaluated.
>
> We do not expect any significant cost or impact on other services, as
> most of this process will be automated and we will not need to
> re-evaluate the assignments. Contacting all relevant LIRs will take
> less than six months.
>
> Please review this proposal and send any comments or other feedback
> before Thursday 6 April to <address-policy-wg at ripe.net>.
>
> Regards,
>
> Laurens Hoogendoorn
> Registration Services
> RIPE NCC
>

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