Zyxel Communications Corporation (3C:F7:5D:00:00:00 /24)

Zyxel Communications Corporation MA-L

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

Prefix3C:F7:5D:00:00:00 /24

Vendor addressNo. 6 Innovation Road II, Science Park Hsichu Taiwan TW 300

Block range3C:F7:5D:00:00:00– 3C:F7:5D: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

3C:F7:5D:00:00:00 3C:F7:5D:7F:FF:FF 3C:F7:5D:FF:FF:FF

Other blocks registered to Zyxel Communications Corporation

00:13:49:00:00:00 /24 MA-L 00:19:CB:00:00:00 /24 MA-L 00:23:F8:00:00:00 /24 MA-L 00:A0:C5:00:00:00 /24 MA-L 04:BF:6D:00:00:00 /24 MA-L 08:26:97:00:00:00 /24 MA-L 10:71:B3:00:00:00 /24 MA-L 10:7B:EF:00:00:00 /24 MA-L 10:C5:FA:00:00:00 /24 MA-L 14:33:75:00:00:00 /24 MA-L 14:36:0E:00:00:00 /24 MA-L 14:C7:C4:00:00:00 /24 MA-L