MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:03:46:00:00:00 /24
Vendor address32 Miyuki-cho Kodaira-shi Tokyo JP 00000
Country🇯🇵 Japan
RegisteredSep 8, 2000
Block range00:03:46:00:00:00– 00:03:46: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 8, 2000 – Nov 9, 2000 Yagi Antenna Co., Ltd. name changed
- Nov 9, 2000 – Jan 15, 2025 Hitachi Kokusai Electric, Inc. name changedaddress changed
- Jan 15, 2025 – Jan 17, 2025 Hitachi Kokusai name changed
- Jan 17, 2025 – present KOKUSAI DENKI Electric Inc.
Example addresses in this block
Where this block sits
Previous
00:03:45:00:00:00 /24
Routrek Networks Corporation
Next
00:03:47:00:00:00 /24
Intel Corporation
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
KOKUSAI DENKI Electric Inc. holds 2 registered blocks in the IEEE registry, ranking #2,364 of 33,427 organizations by block count.
Other blocks registered to KOKUSAI DENKI Electric Inc.