MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0C:DE:00:00:00 /24
Vendor addressEppelheimer Straße 82 Heidelberg Baden-Württemberg DE 69123
Country🇩🇪 Germany
RegisteredApr 8, 2003
Block range00:0C:DE:00:00:00– 00:0C:DE:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Apr 8, 2003 – Feb 24, 2026 ABB STOTZ-KONTAKT GmbH name changed
- Feb 24, 2026 – Mar 3, 2026 ABB AG. name changed
- Mar 3, 2026 – present ABB AG
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ABB AG holds 2 registered blocks in the IEEE registry, ranking #1,431 of 33,421 organizations by block count.
Other blocks registered to ABB AG