Huntsville ID tags

[JacobGibson05]

On my scanner the Huntsville ID's come up with a 5-digit code, the ones listed here are only 4-digit some are 3. How do I know what is what?

 

[SCPD]

What scanner are you using?

 

[pilotman1260]

Mine comes up right im 15 miles away and using PSR-400 and all Tg ids come in as 3-4 digits.