In order to conserve the limited bandwidth available, ISO images are not downloadable from mirror.centos.org

http://mirrors.ocf.berkeley.edu/centos/8.2.2004/isos/aarch64/
http://mirrors.cat.pdx.edu/centos/8.2.2004/isos/aarch64/
http://mirror.web-ster.com/centos/8.2.2004/isos/aarch64/
http://mirror.shastacoe.net/centos/8.2.2004/isos/aarch64/
http://mirror.ette.biz/centos/8.2.2004/isos/aarch64/
http://mirror.den01.meanservers.net/centos/8.2.2004/isos/aarch64/
http://mirrors.rcs.alaska.edu/centos/8.2.2004/isos/aarch64/
http://repos.dfw.quadranet.com/centos/8.2.2004/isos/aarch64/
http://repos.lax.layerhost.com/centos/8.2.2004/isos/aarch64/
http://mirror.netdepot.com/centos/8.2.2004/isos/aarch64/
http://yum.tamu.edu/centos/8.2.2004/isos/aarch64/
http://mirrors.radwebhosting.com/centos/8.2.2004/isos/aarch64/
http://repos-va.psychz.net/centos/8.2.2004/isos/aarch64/
http://centos5.zswap.net/8.2.2004/isos/aarch64/
http://mirror.cs.uwp.edu/pub/centos/8.2.2004/isos/aarch64/
http://centos-distro.1gservers.com/8.2.2004/isos/aarch64/
http://mirror.lax.genesisadaptive.com/centos/8.2.2004/isos/aarch64/
http://centos.s.uw.edu/centos/8.2.2004/isos/aarch64/
http://packages.oit.ncsu.edu/centos/8.2.2004/isos/aarch64/
http://mirror.linux.duke.edu/pub/centos/8.2.2004/isos/aarch64/
http://mirror.genesisadaptive.com/centos/8.2.2004/isos/aarch64/
http://centos.mirror.constant.com/8.2.2004/isos/aarch64/
http://mirror.rackspace.com/CentOS/8.2.2004/isos/aarch64/
http://ftp.ussg.iu.edu/linux/centos/8.2.2004/isos/aarch64/
http://mirror.twinlakes.net/centos/8.2.2004/isos/aarch64/
http://centos.mirrors.tds.net/pub/linux/centos/8.2.2004/isos/aarch64/
http://centos-distro.cavecreek.net/centos/8.2.2004/isos/aarch64/
http://mirror.us-midwest-1.nexcess.net/CentOS/8.2.2004/isos/aarch64/
http://mirror.centos.iad1.serverforge.org/8.2.2004/isos/aarch64/
http://mirror.mobap.edu/centos/8.2.2004/isos/aarch64/
+ others, see the full list of mirrors: https://www.centos.org/download/mirrors/

Mirrors verified Wed Oct 28 03:06:52 2020 UTC

You can also download the ISO images using bittorrent, a peer-to-peer file sharing protocol. The .torrent files can be found from CentOS mirrors. Various bittorrent clients are available, including (in no particular order of preference): utorrent, vuze (Azureus), BitTorrent, Deluge, ctorrent, ktorrent, rtorrent and transmission. Packaged copies of various torrent clients for CentOS can be found in the repositories listed in the following wiki article: https://wiki.centos.org/AdditionalResources/Repositories