Indonesia rolling stock numbering

Certainly, in world a rolling stock numbering always different, likewise Indonesia,
Indonesia rolling stock numbering consist by a alphabet and numeric digits

CTO(chek this out)

Example, for locomotive
CC20183 53
CC : Axle total
2 : Engine type(1 : electric, 2 : DE, 3 : DH)
01 : Series type
83 : Build of years
53 : Rolling stock number

For coach
K3 0 93 14
K : Passenger seat
3 : Class(1 : executive, 2 : business, 3 : economy)
0 : Must be locomotive pulled(1 : electrical, 2 : DE engine, 3 : DH engine)
93 : Years of build
14 : Rolling stock number

Any openvoice how the rolling stock numbering in your country?