Ty, first, you're welcome. Next, you've asked several questions in your "question".
WWII Lugers were made by both Mauser and Krieghoff. Mauser Lugers were produced for mostly the Army, with some undoubtedly for the SS. Krieghoff Lugers went to the Luftwaffe.
As I mentioned, the last Mauser Lugers for the Army ended with the L-Block, approximately. That being true,
my data shows the highest number to be 9958L.
Mauser also produced Lugers for Portugal (about 5000) and Bulgaria (about 6000).
My data shows the highest Portuguese as 5228m and the highest Bulgarian as 3800n.
Hope this helps a little!