Another update on the progress of my serial number tables: I've now posted all Series 1999, 1996, and 1995 bills printed since December 1995 (except the still-missing Oct. '98 data), which ought to cover the vast majority of bills now in circulation. Also, just this morning I added numbers for October 2000 production. Good news for FRB bingo fans: 1999 bills are finally available for all districts, as 12.8M $5's with a BI prefix were printed last month. Heads-up for Hank: 1999 $100's exist now as well. Still no $50's, though.
One more time, here's the link: