3COM EUROPE LTD

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix00:90:04:00:00:00 /24

Vendor address3COM CENTRE, BOUNDARY WAY HERTS. HP2 7YU GB 00000

RegisteredApr 22, 1998

Block range00:90:04:00:00:00– 00:90:04: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 22, 1998 – May 24, 2018 3COM EUROPE LTD. name changedaddress changed
May 24, 2018 – present 3COM EUROPE LTD

Example addresses in this block

00:90:04:00:00:00 00:90:04:7F:FF:FF 00:90:04:FF:FF:FF

Where this block sits

Previous 00:90:03:00:00:00 /24 APLIO Next 00:90:05:00:00:00 /24 PROTECH SYSTEMS CO., LTD.

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

3COM EUROPE LTD holds 12 registered blocks in the IEEE registry, ranking #249 of 33,421 organizations by block count.

Other blocks registered to 3COM EUROPE LTD

00:04:0B:00:00:00 /24 MA-L 00:05:1A:00:00:00 /24 MA-L 00:1E:C1:00:00:00 /24 MA-L 00:22:57:00:00:00 /24 MA-L 00:24:73:00:00:00 /24 MA-L 00:30:1E:00:00:00 /24 MA-L 00:50:99:00:00:00 /24 MA-L 00:D0:96:00:00:00 /24 MA-L 08:00:4E:00:00:00 /24 MA-L 20:FD:F1:00:00:00 /24 MA-L 40:01:C6:00:00:00 /24 MA-L