departmentNumber

From PALDAP

Code for department to which a person belongs. This can also be strictly numeric (e.g., 1234) or alphanumeric (e.g., ABC/123).

The departmentNumber (Department number) attribute type is defined in RFC 2798, section 5.2.

[edit] AttributeTypeDefinition

( 2.16.840.1.113730.3.1.2 NAME 'departmentNumber'
  DESC 'identifies a department within an organization' 
  EQUALITY caseIgnoreMatch
  SUBSTR caseIgnoreSubstringsMatch
  SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 
)