http://mirror.uchile.cl/ubuntu/
https://mirror.uepg.br/ubuntu/
https://mirror.ufro.cl/ubuntu/
http://repos.interior.edu.uy/ubuntu/
http://mirrors.cloud.linets.cl/ubuntu/
https://ubuntu.zero.com.ar/ubuntu/
http://mirror.ufscar.br/ubuntu/
http://ubuntu.unc.edu.ar/ubuntu/
http://mirror1.cl.netactuate.com/ubuntu/
http://mirror.ufam.edu.br/ubuntu/
http://mirror.espol.edu.ec/ubuntu/
http://ubuntu.c3sl.ufpr.br/ubuntu/
http://ubuntu-archive.locaweb.com.br/ubuntu/
http://mirrors.eze.sysarmy.com/ubuntu/
http://sft.if.usp.br/ubuntu/
http://ubuntu.repo.cure.edu.uy/mirror/
http://mirror.cedia.org.ec/ubuntu/
https://ubuntu.letscloud.io/ubuntu/
https://ubuntu.itsbrasil.net/ubuntu/
http://archive.ubuntu.com/ubuntu/