Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2508633_11 (college VARCHAR, nfl_team VARCHAR)

### Question ###
How many colleges have the NFL Team Buffalo Bills?

### Accurate SQL ###

SELECT COUNT(college) FROM table_2508633_11 WHERE nfl_team = "Buffalo Bills"