I think this is operational... I beg to differ: http://www.arin.net/policy/nrpm.html#four3 I have done this for a customer, and they got a /22. There is also a policy proposal right now that would allow an end user to get a BGP ASN, get RIR IP space and do it all at once... http://www.arin.net/policy/proposals/2005_7.htmlh Robert Seastrom is the author of this... Robert, you out there ?? 4.3.2. Minimum assignment 4.3.2.1 Single Connection The minimum block of IP address space assigned by ARIN to end-users is a /20. If assignments smaller than /20 are needed, end-users should contact their upstream provider. 4.3.2.2 Multihomed Connection For multihomed end-users, the minimum block of IP address space assigned is a /22. If assignments smaller than a /22 are needed, multihomed end-users should contact their upstream providers. When prefixes are assigned which are longer than /20, they will be from a block reserved for that purpose. I hope this helps... Jim -----Original Message----- From: sjk [mailto:sjk@dredel.com] Sent: Monday, September 26, 2005 6:47 PM To: Vicky Rode Cc: nanog@merit.edu Subject: Re: Address Space & ASN Allocation Process On Mon, 26 Sep 2005, Vicky Rode wrote:

Hi,

Just trying to get some clarity and direction regarding obtaining address space/ASN for my client.

Is there a minimum address space (?) an entity would need to justify to go directly to RIR (ARIN in this case) as opposed to the upstream provider? Is /20 the minimum allocation? Can my client approach RIR and request for a /23?

If my client do procure a /23 how do they make make sure that this address space will be globally routable?

Multihome will also be part of their network implementation, can they apply for an ASN number?

Yes, minimum assignment is /20 (and this is considered temporary, as the official minimum is /19) -- there used to be some experimental /24s, but I believe these are now gone. ARIN will only assign /20 or more -- larger prefixes must come from your upstream provider. Being multihomed means you will be required to get an AS number. Once you have your address block, you can fill out the request from ARIN. --sjk