How does a number affect maintenance?

Aircraft maintenance checks

A Check 

This is performed approximately every 500 - 800 flight hours. 

B Check 

This is performed approximately every 46 months.

C Check 

This is performed approximately every 2024 months.

D Check 

This check occurs approximately every 5 years. 

what is the aircraft tail number?
When did the aircraft have last maintenance A Check, B Check, C Check, D Check?

If a database with aircraft tail number is available then these questions can be answered.

Is it clear?