Re: Micro-allocation needed?

[William Pitcock <nenolod () systeminplace net>]

On Mon, 2010-06-21 at 23:42 +0200, Ask Bjørn Hansen wrote:
> On Jun 21, 2010, at 23:34, William Pitcock wrote:
>
> > On Mon, 2010-06-21 at 23:32 +0200, Ask Bjørn Hansen wrote:
> > > Hi everyone,
> > >
> > > We're going to anycast a /24 for some DNS servers (and possibly another UDP based service)[1].
> > >
> > > I see that ARIN are listing on https://www.arin.net/knowledge/ip_blocks.html the smallest allocations from each 
> > > prefix.   Will we have trouble getting a /24 announced if we take it from a regular /20?
> >
> > No, you can split up allocations as you want, provided you can prove you
> > own them.
> >
> > Some providers however, won't announce anything smaller than a /24.
>
> I guess to rephrase my question:
>
> Are there (a significant number of) providers that will filter a /24 announcement from an ARIN prefix not in the list 
> of prefixes where they allocate /24 blocks.

I have yet to encounter any.  They are "your IPs" as far as they are
concerned, so they'll typically announce whatever you ask as long as
they are "your IPs".

William