employeeNumber

Identifier that depends on the organization. It often reflects the order of hire or association with the organization.

Origin	RFC 2798
Usage	userApplications
Description	numerically identifies an employee within an organization
OID	2.16.840.1.113730.3.1.3
Substring Matching Rule	caseIgnoreSubstringsMatch
Equality Matching Rule	caseIgnoreMatch
Single Value	true
Names	employeeNumber
Ordering Matching Rule	caseIgnoreOrderingMatch
User Modification Allowed	true
Used By	inetOrgPerson
Schema File	00-core.ldif
Syntax	Directory String