Oray.com co., LTD. (FC:A0:5A:00:00:00 /24)

Oray.com co., LTD. MA-L

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

PrefixFC:A0:5A:00:00:00 /24

Vendor address8008Rm, building No.1 GuoDing d. Yangpu District Shanghai Shanghai CN 200433

Block rangeFC:A0:5A:00:00:00– FC:A0:5A: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

FC:A0:5A:00:00:00 FC:A0:5A:7F:FF:FF FC:A0:5A:FF:FF:FF

Other blocks registered to Oray.com co., LTD.

A0:C5:F2:B0:00:00 /28 MA-M