MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix5C:F5:0D:00:00:00 /24
Vendor addressNa Valentince 1003/1 Praha CZ 15000
Country🇨🇿 Czechia
RegisteredNov 22, 2013
Block range5C:F5:0D:00:00:00– 5C:F5:0D: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
Institute of microelectronic applications holds 1 registered blocks in the IEEE registry, ranking #16,242 of 33,421 organizations by block count.