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<div>Diego –</div>
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<div>Thank you for your thoughtful note regarding the benefits of number portability within the Internet number registry system. While portability is not currently an inherent feature of our system, it’s worth noting that it is technically feasible for critical
Internet identifiers—DNS domain names, for example, do support such mechanisms.</div>
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<div>That said, the DNS ecosystem is structured quite differently. It operates through a commercial model with distinct layers—registries, registrars, and registrants. In contrast, the Internet number registry system lacks that intermediary layer. Moreover,
RIRs are not solely registry operators; they also serve as key institutions supporting their regional communities through outreach, policy development, training, grant programs, and partnerships.</div>
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<div>To better understand your proposal for introducing number block portability into this framework, could you expand on how such a change might impact these Internet development responsibilities? Specifically, how would you envision maintaining those functions
in a model that embraces portability? Also, would effective regional governance of Internet number resources be provided for, if registrants have the ability to freely move to other RIRs that may not follow the policies set by the regional community?</div>
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<div>Thanks again for engaging in this important discussion!</div>
<div>/John</div>
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<div>John Curran</div>
<div>President and CEO</div>
<div>American Registry for Internet Numbers</div>
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<div>On May 6, 2025, at 12:27 PM, Diego Antonio De Leon Paredes via ICP2_review <icp2_review@arin.net> wrote:</div>
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Hi all,</div>
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In my opinion, the right to portability of number resources must be a core requirement</div>
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in the revised ICP-2 to ensure the long-term resilience and stability of the internet.</div>
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Today, network operators face increasing challenges from regulatory fragmentation to</div>
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unforeseen operational disruptions that can jeopardize their ability to function</div>
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effectively. Without the ability to transfer IP resources between RIR(s), networks may</div>
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find themselves trapped in jurisdictions with restrictive policies, bureaucratic delays,</div>
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or unreliable services, putting critical infrastructure at risk.</div>
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Mandatory portability acts as a safety valve, allowing operators to relocate resources</div>
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when necessary to maintain service continuity. By embedding portability in the revised ICP-2, it could protect networks from being held hostage by external factors beyond their control.</div>
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Additionally, this portability right would encourage RIR(s) to adopt best practices in</div>
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governance and service delivery, knowing that operators have the freedom to choose alternatives. I urge to consider the inclusion of clear language in ICP-2 requiring RIR(s)</div>
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to honour transfer requests under fair, transparent, and non-discriminatory terms</div>
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ensuring that the internet remains a robust and adaptable global commons.</div>
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I look forward to positive response on the above, thank you.</div>
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<div style="line-height: 17.33px; white-space: nowrap; margin: 0.1pt;"><span style="font-family: calibri, helvetica; font-size: 13pt; color: rgb(12, 29, 61);"><b>Diego Antonio De Leon Paredes</b></span></div>
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<div style="line-height: 12px; white-space: nowrap; margin: 0.1pt;"><span style="font-family: calibri, helvetica; font-size: 9pt; color: rgb(12, 29, 61);"><b>Bid Manager</b></span></div>
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<div style="line-height: 14.67px; white-space: nowrap; margin: 0.1pt;"><span style="font-family: calibri, helvetica; font-size: 11pt; color: rgb(12, 29, 61);">ddeleon@ifxcorp.com</span></div>
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