MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0B:20:00:00:00 /24
Vendor address111 Hitotsugi, Ueki, Kamoto, Kumamoto JP 861-0198
Country🇯🇵 Japan
RegisteredSep 9, 2002
Block range00:0B:20:00:00:00– 00:0B:20: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
00:0B:1F:00:00:00 /24
I CON Computer Co.
Next
00:0B:21:00:00:00 /24
G-Star Communications Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Hirata corporation holds 1 registered blocks in the IEEE registry, ranking #14,897 of 33,427 organizations by block count.