I sent his as a reply a week ago but didn't hear back. It may not have made it to the list properly, so resending as a new email :-)

Mirror repos.eggycrew.com has been updated to provide altarch now as well. Can I please be added to the altarch mirror list too? Thank you!

HTTP: http://repos.eggycrew.com/centos/

Sync schedule: Every 4 hrs
Bandwidth: 1Gbit/sec
Location: Texas, US
Sponsor: N/A
Sponsor URL: N/A
IPv4 address to authorize: 104.188.116.114

Email contact: russell@jonesmail.me
 
Mirroring AltArch  : yes