MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0B:D7:00:00:00 /24
Vendor addressMainzer Straße 36-52 Bonn Nordrheinwestfalen DE 53179
Country🇩🇪 Germany
RegisteredDec 3, 2002
Block range00:0B:D7:00:00:00– 00:0B:D7: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
- Dec 3, 2002 – Jan 18, 2010 MBB Gelma GmbH name changed
- Jan 18, 2010 – Jun 27, 2026 DORMA Time + Access GmbH name changed
- Jun 27, 2026 – present dormakaba Deutschland GmbH
Example addresses in this block
Where this block sits
Previous
00:0B:D6:00:00:00 /24
Paxton Access Ltd
Next
00:0B:D8:00:00:00 /24
Industrial Scientific Corp.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
dormakaba Deutschland GmbH holds 2 registered blocks in the IEEE registry, ranking #1,897 of 33,427 organizations by block count.
Other blocks registered to dormakaba Deutschland GmbH