Hello NANOGers, During the evening on Friday August 15, 2025 between 8 pm to 12 am EDT (Saturday August 16, 0000 to 0400 UTC), NANOG will perform a migration of our Mailman 3.0 server. During this time, all mailing lists will be unavailable, including the ability to make changes to your subscription options. We expect this migration to be completed in three hours time or backed out. Detailed notes: NANOG will be migrating the hosted location of Mailman 3.0 during this time. This migration will include new IP addresses. Please note the new IP addresses will be 104.197.34.15 and 2600:1900:4001:5d2:0:0:0:0 Sincerely, NANOG Staff ------------------------- *Valerie Wittkop* Program Directorvwittkop@nanog.org | +1 734-730-0225 <+17347300225> (mobile) | www.nanog.org NANOG | 305 E. Eisenhower Pkwy, Suite 100 | Ann Arbor, MI 48108, USA ASN 19230