MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixD0:17:B7:00:00:00 /24
Vendor addressObere Postmatte 19 Seedorf Uri CH 6462
Country🇨🇠Switzerland
RegisteredOct 1, 2025
Block rangeD0:17:B7:00:00:00– D0:17:B7: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
Where this block sits
Atios AG holds 1 registered blocks in the IEEE registry, ranking #5,770 of 33,421 organizations by block count.