Dear Friends,
I have numbers feature class and subtypes.
Each subtype have separate Asset Code Range in excel sheet attached here.
Starting the FloorID is second Level below ground floor(B2) up to Sixth Floor(F6).
Floor ID_Domain Code in below.
B2-B1-GF-BM-F1-F2-F3-F4-F5-F6-UR
Example : See In How to give the UniqueID For Each Subtype excel sheet.
Thanks
Sathosh