<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Aptos;
panose-1:2 11 0 4 2 2 2 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:12.0pt;
font-family:"Aptos",sans-serif;
mso-ligatures:standardcontextual;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style></head><body lang=EN-US link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>A new response from ARIN has been posted for ACSP Suggestion 2025.5: Show Reassigned Prefix Block on Main Page and this suggestion is now closed. You may find the original suggestion and the response from ARIN below.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>American Registry for Internet Numbers (ARIN)<o:p></o:p></p><p class=MsoNormal>-----<o:p></o:p></p><p class=MsoNormal>ACSP Suggestion 2025.5: Show Reassigned Prefix Block on Main Page<o:p></o:p></p><p class=MsoNormal><a href="https://www.arin.net/participate/community/acsp/suggestions/2025/2025-05/">https://www.arin.net/participate/community/acsp/suggestions/2025/2025-05/</a><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Author: Frank Wu <o:p></o:p></p><p class=MsoNormal>Submitted On: 20 June 2025<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Description: show reassigned prefix block on the main page<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Value to Community:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I created RPKI ROA for a /22 not knowing this block had been re-assigned to another entity of my company, it resulted in losing (90%) of this route/prefix on the internet.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>it’s operator error on my side. After replay of the incident and trouble-shooting process, I think a little change on the resource main page could’ve helped me to avoid this problem<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>- this /22 prefix was RPKI unknown<o:p></o:p></p><p class=MsoNormal>- I checked my network address allocation and the whole /16 belongs to us<o:p></o:p></p><p class=MsoNormal>- I DID NOT check the BGP routing table<o:p></o:p></p><p class=MsoNormal>- I DID NOT check the details (the + sign) of the /16<o:p></o:p></p><p class=MsoNormal>- I created the ROA with my own AS<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Is it possible to bring the reassignment information to the main page? if so, I could be alerted earlier.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Timeframe: Not specified<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Status: Closed<o:p></o:p></p><p class=MsoNormal>-----<o:p></o:p></p><p class=MsoNormal>ARIN Response:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thank you for your suggestion, numbered 2025.5, asking that ARIN show reassigned prefix blocks on the main ROA creation page in ARIN Online. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>The BGP intelligence effort that was discussed in a 2024 community consultation (<a href="https://www.arin.net/participate/community/acsp/consultations/2024/2024-1/" title="https://www.arin.net/participate/community/acsp/consultations/2024/2024-1/">https://www.arin.net/participate/community/acsp/consultations/2024/2024-1/</a>) and is currently scheduled for development on the 2026 software road map will provide guidance to customers about potential BGP impacts prior to ROA creation. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>This suggestion will be closed due to this work already scheduled for development. Thank you for participating in ARIN’s Consultation and Suggestion Process.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>