As of noon Wednesday, July 21 2010, NTP (Network Time Protocol) services will be updated to provide service at the following two IP addresses. This is part of ongoing service upgrades.
Time synchronization service (NTP) servers
Current services at 188.8.131.52 and 184.108.40.206 will remain unchanged until September 15 2010. Systems using IP addresses for NTP may update their configurations as of July 21. Systems using the NTP DNS names do not require any changes.