MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:DC:00:00:00 /24
Vendor addressLe Germanium RENNES Brittany FR 35700
Country🇫🇷 France
RegisteredOct 16, 2006
Block range00:19:DC:00:00:00– 00:19:DC: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 →
Example addresses in this block
Where this block sits
Previous
00:19:DB:00:00:00 /24
MICRO-STAR INTERNATIONAL CO., LTD.
Next
00:19:DD:00:00:00 /24
FEI-Zyfer, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ENENSYS Technologies holds 1 registered blocks in the IEEE registry, ranking #11,790 of 33,427 organizations by block count.