MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:25:DC:00:00:00 /24
Vendor address1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024
Country🇯🇵 Japan
RegisteredApr 12, 2009
Block range00:25:DC:00:00:00– 00:25:DC: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 12, 2009 – Oct 30, 2015 Sumitomo Electric Networks, Inc name changedaddress changed
- Oct 30, 2015 – May 29, 2020 Sumitomo Electric Industries,Ltd name changed
- May 29, 2020 – present Sumitomo Electric Industries, Ltd
Example addresses in this block
Where this block sits
Previous
00:25:DB:00:00:00 /24
ATI Electronics(Shenzhen) Co., LTD
Next
00:25:DD:00:00:00 /24
SUNNYTEK INFORMATION CO., LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Sumitomo Electric Industries, Ltd holds 8 registered blocks in the IEEE registry, ranking #391 of 33,421 organizations by block count.
Other blocks registered to Sumitomo Electric Industries, Ltd