Thanks! You may signup on [1] but you’ll need to wait still to use it.
On NUM: I like the idea of building open graphs, but to move the needle it gotta be easier for business owners to provide that information. Lots of orgs use let’s encrypt some of them update their dns records every 90 days with a dns challenge. If there was to be some way to use a process like this (with a companion tool) to get business info into NUM records it would help adoption. I find the idea of calling a domain, sending money to a domain compelling I have to say.