macadress

Sumitomo Electric Industries, Ltd

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0B:A2:00:00:00 /24
Vendor address1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024
Country🇯🇵  Japan
RegisteredNov 19, 2002
Block range00:0B:A2:00:00:00– 00:0B:A2: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

  1. Nov 19, 2002 – Oct 30, 2015 Sumitomo Electric Networks, Inc name changedaddress changed
  2. Oct 30, 2015 – May 29, 2020 Sumitomo Electric Industries,Ltd name changed
  3. May 29, 2020 – present Sumitomo Electric Industries, Ltd

Example addresses in this block

00:0B:A2:00:00:00 00:0B:A2:7F:FF:FF 00:0B:A2:FF:FF:FF

Where this block sits

Previous 00:0B:A1:00:00:00 /24 Fujikura Solutions Ltd. Next 00:0B:A3:00:00:00 /24 Siemens AG

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

00:00:5F:00:00:00 /24 MA-L 00:08:F6:00:00:00 /24 MA-L 00:1C:FC:00:00:00 /24 MA-L 00:25:DC:00:00:00 /24 MA-L 08:4E:BF:00:00:00 /24 MA-L 44:38:8C:00:00:00 /24 MA-L A4:DE:26:00:00:00 /24 MA-L