You can check the dependencies of the table using the Catalog Views:
FROM sys.dm_sql_referencing_entities('[Person].[PersonPhone]', 'OBJECT');
You can check the index usage stats, but if you yourself have selected from the table your stats will be polluted. These stats are reset after a service restart so if you check these stats after a restart and do not touch the table yourself you might get lucky to know if anyone is accessing it.
WHERE OBJECT_NAME(object_id) = 'Department'
AND OBJECT_SCHEMA_NAME(object_id) = 'HumanResources';
You may want to setup a Trace to look for queries referencing the table and run it for a few months. Else you could risk it, export the table to a file using bcp and the native data format (fastest), save off the DDL for the table with all indexes and permissions, and drop the table.
__________________________________________________________________________________________________There are no special teachers of virtue, because virtue is taught by the whole community. --Plato