When trying to edit house numbers on my street (permalink: https://www.waze.com/editor/?env=usa&lon=-70.87773&lat=42.29390&layers=645&zoom=8, street is C Street, block furthest east), I can click the “edit house numbers” button, but just get directed to a page informing me that I am a level one editor. The street is protected to level 1. I can make other edits on that street, so what is the problem?
I don’t see any numbers to edit. Looks like you will have to add them.
It may be a level based thing too. Get your 1000 edits, advance to level 2, and try it again.