North American Network Operators Group
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Re: Smallest netblock that providers will accept?

  • From: Christian Koch
  • Date: Mon Aug 18 22:01:31 2008 
a lot of providers have their bgp/routing policy published somewhere
online/in their community guide

for instance, you can find L3's policy in their irr objects ( whois -h
whois.radb.net as3356)

there are also plenty of community guides available here -
http://www.onesc.net/communities/

Christian



On Mon, Aug 18, 2008 at 9:32 PM, Mike Lyon <[email protected]> wrote:
> Hello All,
>
> I am curious as to the routing polices of the bigger providers such as
> ATT, L3, Internap, Qwest, Etc Etc...  Is there a standard size
> netblock that these providers will accept? For instance, if customer
> "A" gets a /22 from ARIN and his upstream provider is ATT and L3, what
> would the smallest block be that those providers would accept from
> customer "A"? Would they accept something as small as a /24?
>
> Thanks,
> Mike
>
>