E-Prime Co., Ltd. (B4:28:F1:00:00:00 /24)

E-Prime Co., Ltd. MA-L

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

PrefixB4:28:F1:00:00:00 /24

Vendor addressRm1207, Kolon Science Valley, 811, Seoul KR 152050

Block rangeB4:28:F1:00:00:00– B4:28:F1: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

B4:28:F1:00:00:00 B4:28:F1:7F:FF:FF B4:28:F1:FF:FF:FF