Dear RSSAC Caucus Members, Based on the conversation yesterday in the Guidelines for Changing IP Addresses Work Party, I looked into which RIRs have special policies for critical Internet infrastructure or some other address policies that recognise DNS root servers as special. TL;DR: AFRINIC, APNIC, ARIN, and LACNIC have policies for critical Internet infrastructure IP address allocations that includes DNS root servers. AFRINIC https://afrinic.net/policy/manual 5.6.4.1 AFRINIC will make End-User assignment to critical infrastructure providers of the Internet such as public internet exchange points and core DNS service providers. These allocations will be no longer than a /24 using IPv4. Multiple allocations may be granted in certain situations. Exchange point assignments MUST be issued from specific blocks reserved only for this purpose. 5.6.4.4.2 Core DNS service provider: A core DNS service provider is a company who provides DNS service for the root level of the DNS tree (ICANN-sanctioned root operators). APNIC https://www.apnic.net/community/policy/resources#a_h_6_2_3 https://help.apnic.net/s/article/Critical-Infrastructure APNIC makes assignments for critical infrastructure including DNS root servers. ARIN https://www.arin.net/participate/policy/nrpm/#6-10-1-micro-allocations-for-c... 6.10.1. Micro-allocations for Critical Infrastructure ARIN will make micro-allocations to critical infrastructure providers of the Internet, including public exchange points, core DNS service providers (e.g. ICANN-sanctioned root, gTLD, and ccTLD operators) as well as the RIRs and IANA. LACNIC https://www.lacnic.net/682/2/lacnic/ 2.3.3.2.Micro-Assignments to Critical Infrastructure LACNIC may grant this type of assignment in case of projects and network infrastructure that are key or critical for the region, such as IXPs (Internet Exchange Points), NAPs (Network Access Points), RIRs, ccTLDs, among others. RIPE https://www.ripe.net/publications/docs/ripe-826/ RIPE has a special TLD Anycast space for use in TLD anycast networks. It cannot be kept when no longer used for TLD anycast services. DNS root servers are not included in this. Thanks, Andrew