MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:03:00:00:00 /24
Vendor addressBAT L - 1 rue de Terre Neuve COURTABOEUF FR 91944
Country🇫🇷 France
RegisteredAug 4, 2004
Block range00:12:03:00:00:00– 00:12:03: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
- Aug 4, 2004 – Jan 30, 2013 Activ Networks name changedaddress changed
- Jan 30, 2013 – Jan 31, 2013 ActivNetworks name changedaddress changed
- Jan 31, 2013 – Feb 14, 2013 Activ Networks name changedaddress changed
- Feb 14, 2013 – present ActivNetworks
Example addresses in this block
Where this block sits
Previous
00:12:02:00:00:00 /24
Decrane Aerospace - Audio International Inc.
Next
00:12:04:00:00:00 /24
u10 Networks, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ActivNetworks holds 1 registered blocks in the IEEE registry, ranking #4,001 of 33,421 organizations by block count.