Bad mirrors
While attempting to install Alpine Linux today, I noticed that 3 of the mirrors in the mirror list are defunct. Specifically, they are the *.lax-noc.com mirrors (repos.lax-noc.com, repos.dfw.lax-noc.com, and repos.mia.lax-noc.com). They are no longer hosting any Alpine Linux files.
(from redmine: issue id 5985, created on 2016-08-03, closed on 2018-01-25)