macadress

e-Tek Labs, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:50:0C:00:00:00 /24
Vendor address1057 EAST HENRIETTA RD. ROCHESTER NY US 14623
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:50:0C:00:00:00– 00:50:0C: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. Sep 8, 2000 – Jun 5, 2002 ETEK LABS, INC. name changed
  2. Jun 5, 2002 – present e-Tek Labs, Inc.

Example addresses in this block

00:50:0C:00:00:00 00:50:0C:7F:FF:FF 00:50:0C:FF:FF:FF

Where this block sits

Previous 00:50:0B:00:00:00 /24 Cisco Systems, Inc Next 00:50:0D:00:00:00 /24 SATORI ELECTORIC CO., LTD.

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

e-Tek Labs, Inc. holds 1 registered blocks in the IEEE registry, ranking #11,017 of 33,427 organizations by block count.