If this year follows last year and the year before at this particular date, then that'd extrapolate into a team total of 2860 for this year, but registration shows up a little differently this year because of the longer waitlists hiding teams a bit more than usual.
If overall growth is the same as last year, then that'd be about 2903 total teams for this year.
The daily registration tally is available at:
Open Registration Year-to-Year Comparison
It's only updated every once in a while for the current registration period.
Note that the dates in the chart have been normalized to bring registration schedule openings/closings differences over the years into alignment for comparison purposes.
The vertical markers represent the opening of registration for: 2nd District, 2nd Regional, Unrestricted Regional, Closing, and Kickoff.