250
Google’s shortened links will stop working next year
(www.theverge.com)
This is a most excellent place for technology news and articles.
I don’t know for sure, but that’s the scale I would expect (billions) and the number came from https://www.seroundtable.com/google-goo-gl-urls-to-404-37758.html
Ah, yes, I'm off by a lot then, thanks!