OID value: 2.5.4.17
OID description:
The Postal Code attribute type specifies
the postal code of the named object. If the attribute value
is present it will be part of the object's postal address.
An attribute value for Postal Code is a string.
postalCode ATTRIBUTE ::= { WITH SYNTAX DirectoryString {ub-postal-code} EQUALITY MATCHING RULE caseIgnoreMatch SUBSTRINGS MATCHING RULE caseIgnoreSubstringMatch ID id-at-postalCode }
See also the OID Repository website reference for 2.5.4.17