[Apologies for duplicate e-mails] Dear Colleagues, On Thursday, 15 February 2006, there will be planned maintenance on the Routing Information Service (RIS). This work will make the RIS database compatible with 4-byte Autonomous System Numbers. At 16:45 (UTC), the RIS database will stop inserting data. Between 17:00 and 18:00 (UTC), the database servers will be stopped twice for about 15 minutes. All RIS tools, except the Looking Glass, will be unavailable for up to 20 minutes. Data collection will continue during the maintenance. When the system restarts, it may be a few hours until all the stored updates are inserted. We thank you for your patience and apologise for any inconvenience this may cause. If you have any questions about this work, please e-mail us at: ris@ripe.net Regards, Erik Romijn Information Services RIPE NCC