Registration Authority

IEEE offers Registration Authority programs or registries which maintain lists of unique identifiers under standards and issue unique identifiers to those wishing to register them. The IEEE Registration Authority assigns unambiguous names to objects in a way which makes the assignment available to interested parties.

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If your firm manufactures or plans to manufacture products using ISO/IEC 8802 standards, you should apply to IEEE for your firm's MA-S. IEEE has been designated by the ISO Council to act as the registration authority for the implementation of International Standards in the ISO/IEC 8802 series. This is the one world-wide source of registered MA-S'. For further details contact:

IEEE Registration Authority
c/o IEEE Standards Association
445 Hoes Lane
Piscataway NJ 08854
Phone: (732) 465-6481
Email: IEEE Registration Authority

IEEE MA-S Assignments
Public listings should be searched prior to applying for an MA-S assignment. The list will allow you to determine whether your company or any parent/subsidiary companies already own an assignment.

When searching the public listings, addresses should be entered as XX-XX-XX.

These listings are updated daily.

Search the public OUI-36 and MA-S listing
Search for:

Download a copy of the OUI-36 and MA-S public listing.

Search the IAB public listings
Note: The Individual Address Block (IAB) is an inactive registry activity, which has been replaced by the MA-S registry product as of January 1, 2014.
Search for:

Download a copy of the IAB public listings.