Yo2020,
FYI...
Ur SE can select first 2 digits, last 2 digits see luck, during
registration.
Example, on a particular day of registration, normally given a few
series to choose from, like S73XX,S74XX,S75XX...
So if you like S8XXX series, may be can ask ur SE to select S88XX
series...
You can roughly guess the range..
Example on Jan 4, was S70XX, then on Jan 7, was S75XX...
I think by Jan 12, should start to see S80XX...