First, Elf_Boy’s Personal Base: APPLEFRITTER-4548
Second for your Alts: OTG: 1337OTG-10095
At the Base Portals in game when you click on them there is an option to enter a code. Using these will get you into the specific base.
You can use the NPC’s and Teleporters but wont be able to access Storage.
If anyone is up for sharing thier own Base Code - or any of the ones published as being for public use please do.
Please note if it is yours and if a public what web page you got the code from.