MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1B:85:00:00:00 /24
Vendor addressTeglholmsgade 41 Copenhagen DK 2450
Country🇩🇰 Denmark
RegisteredFeb 20, 2007
Block range00:1B:85:00:00:00– 00:1B:85: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
- Feb 20, 2007 – Jun 23, 2009 MAN Diesel A/S name changed
- Jun 23, 2009 – Jan 28, 2020 MAN Diesel SE name changed
- Jan 28, 2020 – Sep 2, 2025 MAN Energy Solutions name changed
- Sep 2, 2025 – present Everllence
Example addresses in this block
Where this block sits
Previous
00:1B:84:00:00:00 /24
Scan Engineering Telecom
Next
00:1B:86:00:00:00 /24
Bosch Access Systems GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Everllence holds 1 registered blocks in the IEEE registry, ranking #12,268 of 33,421 organizations by block count.