ARIN legacy block transfer process

John Curran jcurran at
Sun Oct 2 21:57:40 UTC 2016

On 30 Sep 2016, at 1:42 PM, Jim Mercer <jim at> wrote:
> On Fri, Sep 30, 2016 at 01:22:19PM -0400, William Herrin wrote:
>> 1. Buyer gets approved by ARIN for a specified transfer in the amount
>> to be purchased. Signs RSA.
>> 2. Legacy registrant (seller) signs the LRSA, proves identity and
>> authority to ARIN, places legacy block under the LRSA.
> i don't recall having to sign an LRSA, but they certainly do need proof that
> you are the entity that holds the block.

That’s correct Jim. 

>> 3. Buyer requests specified transfer from ARIN, seller authorizes it.
>> 4. ARIN transfers registration to buyer, now under the RSA.
> if you are a legacy holder, and you want a dead simple way to sell off your
> rights to blocks, register for the STLS, and get your blocks added to the
> list.
> (at the bottom)
> this is also a good place to go if you want to buy rights to a block.
> you can also solicit offers to buy from anyone on the list.

Also correct - ARIN runs the Specified Transfer Listing Service (STLS) so
that parties that wish to be vetted by ARIN may do so in advance, and also
optionally be listed as “interested in offers” from others using the STLS service.
Also, potential recipients may have their IP address need verified in advance,
therefore making them a qualified recipient in the ARIN region.  It’s completely
optional, but available for those who wish to validate their half of a transfer
(whether as a source or recipient) in advance. 

> works well, and less dodgy-ness, since everyone on the list has been
> vetted (to some degree) by ARIN.

I’m glad you like the STLS service; it does work well for straightforward 
transfers among parties.  There are some cases (complex corporate 
changes, long absent or incorrect registration information, etc.) where
parties may find the support and guidance of one of the brokers helpful;
it doesn’t matter to ARIN either way nor does it change the criteria that
we apply - all transfers follow the same policy.


John Curran
President and CEO

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