macadress

Roche Diagnostics International Ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:40:49:00:00:00 /24
Vendor addressFORRENSTRASSE ROTKREUZ ZG CH 6343
Country🇨🇭  Switzerland
RegisteredSep 8, 2000
Block range00:40:49:00:00:00– 00:40:49: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 – Nov 16, 2011 TEGIMENTA AG name changedaddress changed
  2. Nov 16, 2011 – Apr 12, 2013 Roche Diagnostics Ltd. name changedaddress changed
  3. Apr 12, 2013 – present Roche Diagnostics International Ltd.

Example addresses in this block

00:40:49:00:00:00 00:40:49:7F:FF:FF 00:40:49:FF:FF:FF

Where this block sits

Previous 00:40:48:00:00:00 /24 SMD INFORMATICA S.A. Next 00:40:4A:00:00:00 /24 WEST AUSTRALIAN DEPARTMENT

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

Roche Diagnostics International Ltd. holds 1 registered blocks in the IEEE registry, ranking #24,722 of 33,427 organizations by block count.