EMSTONE (F4:49:EF:00:00:00 /24)

EMSTONE MA-L

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

PrefixF4:49:EF:00:00:00 /24

Vendor address#1201, Byeoksan Digital Valley 3rd, 271, Digital-ro Guro-Gu Seoul KR 08381

Block rangeF4:49:EF:00:00:00– F4:49:EF: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

F4:49:EF:00:00:00 F4:49:EF:7F:FF:FF F4:49:EF:FF:FF:FF

Other blocks registered to EMSTONE

24:FA:D6:00:00:00 /24 MA-L