[arin-ppml] Revised - Draft Policy ARIN-2025-1: Clarify ISP and LIR Definitions and References to Address Ambiguity in NRPM Text

Owen DeLong owen at delong.com
Thu Sep 18 21:05:16 EDT 2025



> On Sep 18, 2025, at 04:04, Mohibul Mahmud <mohibul.mahmud at gmail.com> wrote:
> 
> Hello All,
>  
> Thank you for the thoughtful perspectives shared — I hear strong points on both sides:
>  
> • LIR aligns with global terminology and avoids the vernacular baggage of “ISP.”
> • ISP is consistent with ARIN’s historic usage and avoids confusion with structures (like NIRs) that don’t exist in our region.

I think that any potential confusion with NIRs is a bit of a red herring.

>  
> To bridge this, I’d suggest we converge on a practical editorial approach:
> • Select one preferred term for the NRPM (ISP or LIR).
> • Add a clear definition note stating that ISP and LIR are used interchangeably in ARIN policy.
>  
> This way, ARIN policy remains globally intelligible while providing clarity to our community.
>  
> Would others support moving in this direction?

Since that’s pretty much what I suggested from the start, just with the strong preference for LIR being the primary choice, yes, I think that’s exactly what we should do.

I think there’s been general consensus for this and the debate has largely been about which term is preferred.

Owen

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