MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:40:BC:00:00:00 /24
Vendor address3 DRAYTON PARK GB ENGLAND
Country🇬🇧 United Kingdom
RegisteredSep 8, 2000
Block range00:40:BC:00:00:00– 00:40:BC: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
00:40:BB:00:00:00 /24
GOLDSTAR CABLE CO., LTD.
Next
00:40:BD:00:00:00 /24
STARLIGHT NETWORKS, INC.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ALGORITHMICS LTD. holds 1 registered blocks in the IEEE registry, ranking #4,688 of 33,421 organizations by block count.