dotted AS numbers in asn.txt

Joe Abley jabley at
Wed Sep 19 19:31:01 UTC 2007

[hostmaster at dropped from cc list, to avoid a potential  
flurry of pointless new tickets.]

On 19-Sep-2007, at 1417, Andreas Ott wrote:

> since when does contain dotted
> AS numbers?

Good question, for the reason you noted below (breaking scripts). If  
I was to guess I'd say it happened shortly after ARIN assigned their  
first 32-bit AS number.

> Where is the new formatting documented, asn.h ? 
representation-04.txt contains pertinent words, but I imagine it's  
not strictly accurate to call that documentation for ARIN's  
presentation format decisions (although maybe it is, to all intents  
and purposes, since I seem to think that George's draft mainly seeks  
to document practice that the RIRs have already agreed on, between  

> It just broke a scriptology we use to generate AS lookups for  
> 'offline'
> customers (please don't ask :) ).


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