Name National SubNational Admin. Subdivisions
USA N2 N1 SN2 SN1 AS3 AS2 AS1
               
               
CANADA N2 N1 SN2 SN1 0 AS2 AS1
               
RUSSIA N2 N1 SN2 SN1 AS3 AS2 AS1
               
ALL OTHER NATIONS N2 N1 SN2 SN1 AS3 AS2 AS1
Notes:
USA required three digit county code.
Filler required because Canada had a two digit county code.
Country codes range from 10 - 99, to avoid leading zeros.
All fields are stored as 7 digit numbers.
National XX00000
SubNational XXXX000
Admin. Subdivisions XXXXXXX
Because Country codes are unique,  there should be no collisions, even though State and County codes may overlap.