North American Network Operators Group

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Re: ARIN allocating /20 netblocks?

  • From: Jeremiah Kristal
  • Date: Fri May 15 16:03:01 1998

On Fri, 15 May 1998, Mark D. Nagel wrote:

> One of our customers was recently allocated a /20 netblock from ARIN.
> I had just been ass-u-ming it was a /19 until I cross-checked our
> announcement update with the request from the customer.  Is this a
> change in policy (I thought they only allocated /19 or bigger) or did
> I miss something?  If the former, are NSPs like Sprint planning to
> update filters to route these new smaller blocks?

ARIN has made a slight change to make it easier for small ISPs to get
provider independant netblocks.  They will assign a /20 and reserve the
adjacent /20, the customer is allowed to announce the entire /19.
For further information, please view http://www.arin.net/initial-isp.html

Jeremiah


Jeremiah Kristal
Senior Network Engineer
ICon CMT Corporation
[email protected]
201-319-5764
x284 internal