No subject

Phil Rosenthal pr at
Wed Nov 13 18:22:01 UTC 2002

Most notably verio does this.

-----Original Message-----
From: owner-nanog at [mailto:owner-nanog at] On Behalf Of
Sent: Wednesday, November 13, 2002 1:17 PM
To: Harsha Narayan; nanog at
Subject: Re: 

If the space is from what was originally class a or b, there are some
that will filter based on that.  An ex employer of mine did that.


----- Original Message -----
From: "Harsha Narayan" <hnarayan at>
To: <nanog at>
Sent: Wednesday, November 13, 2002 8:53 AM

> 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.

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