http://www.ontime1405.com/centos/5.5/updates/x86_64/
http://mirror.linux.duke.edu/pub/centos/5.5/updates/x86_64/
http://centos.mirrors.tds.net/pub/linux/centos/5.5/updates/x86_64/
http://mirrors.arsc.edu/centos/5.5/updates/x86_64/
http://mirrors.tummy.com/mirrors/CentOS/5.5/updates/x86_64/
http://mirror.singleedge.com/pub/centos/5.5/updates/x86_64/
http://mirror.denver.openreaction.net/CentOS/5.5/updates/x86_64/
http://centos-distro.cavecreek.net/centos/5.5/updates/x86_64/
http://centos.eecs.wsu.edu/5.5/updates/x86_64/
http://mirror.umoss.org/centos/5.5/updates/x86_64/