macadress

HERMES ELECTRONICS CO., LTD.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:90:19:00:00:00 /24
Vendor address3-2-12 YUSHIMA, BUNKYO-KU TOKYO, 113-0034 JP
Country🇯🇵  Japan
RegisteredApr 22, 1998
Block range00:90:19:00:00:00– 00:90:19: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 →

Example addresses in this block

00:90:19:00:00:00 00:90:19:7F:FF:FF 00:90:19:FF:FF:FF

Where this block sits

Previous 00:90:18:00:00:00 /24 ITO ELECTRIC INDUSTRY CO, LTD. Next 00:90:1A:00:00:00 /24 UNISPHERE SOLUTIONS

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

HERMES ELECTRONICS CO., LTD. holds 1 registered blocks in the IEEE registry, ranking #14,773 of 33,427 organizations by block count.