Dear Max,

On Mon, Jul 28, 2025 at 12:03:04PM +0200, Max Emig via db-wg wrote:
> one of the largest Tier 1 ISP AS3356 is still using it for
> communicating BGP communities for their ASN for some reason, while
> those are neither in ARIN nor documented in any other official place.
> 
> I believe, we should get in touch with them before deprecation, as it
> is still quite relevant information for a significant part of Net Eng.

Their communities are also documented in their own IRR:

        $ whois -h rr.level3.net -- '-s LEVEL3 AS3356'

That aut-num object seems to be more up-to-date than the one in
RIPE-NONAUTH:

        aut-num:        AS3356
        ...
        source:         RIPE-NONAUTH
        last-modified:  2023-11-28T20:03:20Z

in contrast to:

        aut-num:        AS3356
        ...
        source:         LEVEL3
        last-modified:  2024-12-05T18:06:14Z

Kind regards,

Job
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