macadress

ABB Switzerland Ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:93:00:00:00 /24
Vendor addressVia Luserte Sud 9 Quartino Quartino CH 6572
Country🇨🇭  Switzerland
RegisteredOct 10, 2004
Block range00:12:93:00:00:00– 00:12:93: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. Oct 10, 2004 – Oct 25, 2020 GE Energy name changed
  2. Oct 25, 2020 – Mar 3, 2022 ABB Power Protection (CH) name changedaddress changedcountry changed
  3. Mar 3, 2022 – present ABB Switzerland Ltd.

Example addresses in this block

00:12:93:00:00:00 00:12:93:7F:FF:FF 00:12:93:FF:FF:FF

Where this block sits

Previous 00:12:92:00:00:00 /24 Griffin Technology Next 00:12:94:00:00:00 /24 SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC

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

ABB Switzerland Ltd holds 2 registered blocks in the IEEE registry, ranking #1,434 of 33,421 organizations by block count.