Not sure reservation #s are sequential or exclusive to specific models. Might also have regional coding...
If anybody knows for sure please shed some light.
RN113953XXX
I doubt they got over 100 million reservations.
As for timing, I was interrupted while watching and had to press pause for a while. So the announcement was delayed for me. Ironically it was because Tesla Mobile Service had just arrived at my house.
But these timestamps provide some information although I do not know the exact time it was announced.
Credit Card Charge @4:04 PM PST
Received confirming Thank You email @. 4:05 PM PST