MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:C0:59:00:00:00 /24
Vendor address1-1, Showa-cho, Kariya-shi, Aichi JP 448-8661
Country🇯🇵 Japan
RegisteredApr 22, 1998
Block range00:C0:59:00:00:00– 00:C0:59: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
- Apr 22, 1998 – Jun 23, 2009 NIPPON DENSO CO., LTD. name changedaddress changed
- Jun 23, 2009 – present DENSO CORPORATION
Example addresses in this block
Where this block sits
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00:C0:58:00:00:00 /24
DATAEXPERT CORP.
Next
00:C0:5A:00:00:00 /24
SEMAPHORE COMMUNICATIONS CORP.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
DENSO CORPORATION holds 3 registered blocks in the IEEE registry, ranking #1,001 of 33,427 organizations by block count.
Other blocks registered to DENSO CORPORATION