Partial Use Of one Regions IP Block in another

Owen DeLong owen at
Thu May 20 14:37:18 UTC 2010

There is absolutely nothing wrong with an organization getting all of it's
IP resources world wide from a single registry if they prefer to do so.

There is no policy prohibiting this in any registry. The policies are
designed to prevent "registry shopping" by organizations with neither
infrastructure nor presence in a region. There is no need, whatsoever
to procure multiple address chunks from multiple registries in order
to have infrastructure in more than one region.

You state "Obv, the best approach...". I don't think so. I think the best
approach is whatever allows you to make most efficient use of your
address space. Usually this will be from a single RIR rather than a
multiple RIR approach.


On May 20, 2010, at 5:06 AM, Net wrote:

> Hi folks,
> Are there any policies set by internet registries and/or transit
> providers today that prohibits organizations from using a Partially
> used IP Block allocated in one region say AP through APNIC to be
> comissioned and Propagated in another region such as EMEA serviced by
> RIPE?.
> Obv, the best approach would be to acquire a new Block in the 2nd
> region through its own registry, but sometimes due to strict
> prvisioning timelines, legal delays in getting the necessary approvals
> involved etc make this option less attractive. From an IPV4 space
> depletion perspective as well, it might be feasible if organizations
> having a large block in one region could split it amongst multiple
> regions to prevent Wastage.
> Any thoughts/expereinces and feedback would be appreciated.
> Regards,
> -- 
> Sent from my mobile device

More information about the NANOG mailing list