MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:67:00:00:00 /24
Vendor address2460-1, Uegawa-Cho Matsusaka-City Mie JP 571-8506
Country🇯🇵 Japan
RegisteredSep 22, 2004
Block range00:12:67:00:00:00– 00:12:67: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
- Sep 22, 2004 – Mar 27, 2013 Matsushita Electronic Components Co., Ltd. name changedaddress changed
- Mar 27, 2013 – present Panasonic Corporation
Example addresses in this block
Where this block sits
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00:12:66:00:00:00 /24
Swisscom Hospitality Services SA
Next
00:12:68:00:00:00 /24
IPS d.o.o.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Panasonic Corporation holds 1 registered blocks in the IEEE registry, ranking #22,562 of 33,421 organizations by block count.