http://sft.if.usp.br/ubuntu/
http://mirrors.cloud.linets.cl/ubuntu/
http://mirror.unesp.br/ubuntu/
http://mirror.ufam.edu.br/ubuntu/
http://ubuntu-archive.locaweb.com.br/ubuntu/
http://ubuntu.unc.edu.ar/ubuntu/
http://mirror.cedia.org.ec/ubuntu/
http://mirror.globo.com/ubuntu/archive/
http://mirror.upb.edu.co/ubuntu/
http://repo.cure.edu.uy/ubuntu/archivos/
http://mirror.espol.edu.ec/ubuntu/
http://mirror.ufscar.br/ubuntu/
http://ftp.tecnoera.com/ubuntu/
http://ubuntu.c3sl.ufpr.br/ubuntu/
http://mirror.edatel.net.co/ubuntu/
http://mirror.uchile.cl/ubuntu/
http://archive.ubuntu.com/ubuntu/