macadress

Sumitomo Metal Micro Devices, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:06:C8:00:00:00 /24
Vendor address1, Higashimukojima Higashino-cho JP
Country🇯🇵  Japan
RegisteredJun 4, 2001
Block range00:06:C8:00:00:00– 00:06:C8: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. Jun 4, 2001 – Oct 24, 2001 Sumitomo Metal Insustries, Ltd. name changed
  2. Oct 24, 2001 – Jun 5, 2002 Sumitomo Metal Industries, Ltd. name changedaddress changed
  3. Jun 5, 2002 – present Sumitomo Metal Micro Devices, Inc.

Example addresses in this block

00:06:C8:00:00:00 00:06:C8:7F:FF:FF 00:06:C8:FF:FF:FF

Where this block sits

Previous 00:06:C7:00:00:00 /24 RFNET Technologies Pte Ltd (S) Next 00:06:C9:00:00:00 /24 Technical Marketing Research, Inc.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Sumitomo Metal Micro Devices, Inc. holds 1 registered blocks in the IEEE registry, ranking #28,539 of 33,427 organizations by block count.