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 take it from what you wrote that the answer is "No"). - ask
