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<p class="MsoNormal">Hello David,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s the information you requested.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Block Size # Blocks % of Total<o:p></o:p></p>
<p class="MsoNormal">/20 8 0.09%<o:p></o:p></p>
<p class="MsoNormal">/22 22 0.25%<o:p></o:p></p>
<p class="MsoNormal">/24 34 0.39%<o:p></o:p></p>
<p class="MsoNormal">/27 2 0.02%<o:p></o:p></p>
<p class="MsoNormal">/28 113 1.30%<o:p></o:p></p>
<p class="MsoNormal">/29 14 0.16%<o:p></o:p></p>
<p class="MsoNormal">/30 6 0.07%<o:p></o:p></p>
<p class="MsoNormal">/31 23 0.26%<o:p></o:p></p>
<p class="MsoNormal">/32 3,986 45.69%<o:p></o:p></p>
<p class="MsoNormal">/33 1 0.01%<o:p></o:p></p>
<p class="MsoNormal">/35 3 0.03%<o:p></o:p></p>
<p class="MsoNormal">/36 1,169 13.40%<o:p></o:p></p>
<p class="MsoNormal">/37 1 0.01%<o:p></o:p></p>
<p class="MsoNormal">/38 1 0.01%<o:p></o:p></p>
<p class="MsoNormal">/40 729 8.36%<o:p></o:p></p>
<p class="MsoNormal">/41 11 0.13%<o:p></o:p></p>
<p class="MsoNormal">/42 13 0.15%<o:p></o:p></p>
<p class="MsoNormal">/43 9 0.10%<o:p></o:p></p>
<p class="MsoNormal">/44 805 9.23%<o:p></o:p></p>
<p class="MsoNormal">/45 15 0.17%<o:p></o:p></p>
<p class="MsoNormal">/46 14 0.16%<o:p></o:p></p>
<p class="MsoNormal">/47 26 0.30%<o:p></o:p></p>
<p class="MsoNormal">/48 1,719 19.70%<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Total Blocks 8,724 <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Jon Worley<o:p></o:p></p>
<p class="MsoNormal">Senior Technology Architect<o:p></o:p></p>
<p class="MsoNormal">American Registry for Internet Numbers (ARIN) <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">ARIN-PPML <arin-ppml-bounces@arin.net> on behalf of John Sweeting <jsweeting@arin.net><br>
<b>Date: </b>Thursday, January 5, 2023 at 11:05 AM<br>
<b>To: </b>David Farmer <farmer@umn.edu><br>
<b>Cc: </b>"arin-ppml@arin.net" <arin-ppml@arin.net><br>
<b>Subject: </b>Re: [arin-ppml] Are we an ISP or an End-User? Can our designation change at a later time?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">David, ARIN will provide the information you requested later today. Thanks <o:p></o:p></p>
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<p class="MsoNormal">Sent from my iPhone<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">On Jan 4, 2023, at 7:12 PM, David Farmer via ARIN-PPML <arin-ppml@arin.net> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Wed, Jan 4, 2023 at 4:32 PM William Herrin <<a href="mailto:bill@herrin.us">bill@herrin.us</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Wed, Jan 4, 2023 at 11:52 AM Fernando Frediani <<a href="mailto:fhfrediani@gmail.com" target="_blank">fhfrediani@gmail.com</a>> wrote:<br>
> Another thing that I wanted to understand better is the reasoning to allocate a significant smaller IPv6 block to a said end-user organization given it is not so scarce resource.<br>
<br>
The standard size assignment to an end user is /48 per IETF<br>
recommendation. That's 65,000 LANs, 2^80 IP addresses. Vanishingly few<br>
end-user organizations actually have a need for more LANs than that.<br>
However, since /48 is also the minimum Internet routable size,<br>
end-user organizations with multiple independently-connected sites may<br>
need several /48s. That's a minority of end-users but still a<br>
significant number.<o:p></o:p></p>
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<p class="MsoNormal">This is all true; However, justifying a larger end-user allocation (formerly known as an assignment) isn’t that hard either; you justify a /48 per site in a larger multi-site organization; they don’t have to be independently connected.
That is, more than 1 site but less than or equal to 12 sites receive a /44 allocation; more than 12 but less than or equal to 192 sites receive a /40 allocation; see the policy for even larger allocations and a discussion for campus environments. Also, most
larger organizations likely could qualify as an ISP/LIR if they wish.<br>
<br>
So, many end-user organizations are receiving /44s, /40s, and even larger allocations without much trouble. Could the ARIN staff provide an updated histogram of IPv6 allocation sizes; I haven't seen one in several years.<br>
<br>
I hope that helps.<o:p></o:p></p>
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<p class="MsoNormal">ISPs get a /32 so that, by default, they can assign 65,000 /48s to<br>
their customers and still keep a few for themselves. That's the reason<br>
they receive significantly more.<br>
<br>
Regards,<br>
Bill Herrin<br>
<br>
-- <br>
For hire. <a href="https://bill.herrin.us/resume/" target="_blank">https://bill.herrin.us/resume/</a><br>
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Please contact <a href="mailto:info@arin.net" target="_blank">info@arin.net</a> if you experience any issues.<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">===============================================<br>
David Farmer <a href="mailto:Email%3Afarmer@umn.edu" target="_blank">
Email:farmer@umn.edu</a><br>
Networking & Telecommunication Services<br>
Office of Information Technology<br>
University of Minnesota <br>
2218 University Ave SE Phone: 612-626-0815<br>
Minneapolis, MN 55414-3029 Cell: 612-812-9952<br>
=============================================== <o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
ARIN-PPML<br>
You are receiving this message because you are subscribed to<br>
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Unsubscribe or manage your mailing list subscription at:<br>
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Please contact info@arin.net if you experience any issues.<o:p></o:p></p>
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