Siemens AG (40:EC:F8:00:00:00 /24)

Siemens AG MA-L

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

Prefix40:EC:F8:00:00:00 /24

Vendor addressI IS MS EDM Munich Germany DE 85630

Block range40:EC:F8:00:00:00– 40:EC:F8: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

40:EC:F8:00:00:00 40:EC:F8:7F:FF:FF 40:EC:F8:FF:FF:FF

Other blocks registered to Siemens AG

00:01:E3:00:00:00 /24 MA-L 00:0B:A3:00:00:00 /24 MA-L 00:0E:8C:00:00:00 /24 MA-L 10:DF:FC:00:00:00 /24 MA-L 28:63:36:00:00:00 /24 MA-L 30:B8:51:00:00:00 /24 MA-L 3C:FF:E4:00:00:00 /24 MA-L 88:3F:99:00:00:00 /24 MA-L A8:6D:04:00:00:00 /24 MA-L AC:64:17:00:00:00 /24 MA-L D0:EB:1A:00:00:00 /24 MA-L EC:1C:5D:00:00:00 /24 MA-L