North American Network Operators Group
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Re:

  • From: Andre Chapuis
  • Date: Wed Nov 13 13:30:08 2002 
Harsha,
Yes we do (Swisscom IP-Plus AS3303). We filter on RIR minimal allocations
and anything longer than /21 within historical A/B space
André

----- Original Message -----
From: "Harsha Narayan" <[email protected]>
To: <[email protected]>
Sent: Wednesday, November 13, 2002 5:53 PM


>
> Hello,
>
>    Are there some ISPs who filter prefixes longer than /19 or a /20?. I
> thought they filtered only prefixes which are longer than /24?
>
>
> Harsha.
>
>