CGI IT UK LIMITED (F8:E5:CF:00:00:00 /24)

CGI IT UK LIMITED MA-L

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

PrefixF8:E5:CF:00:00:00 /24

Vendor address20 Fenchurch Street, 14th Floor London GB EC3M 3BY

Block rangeF8:E5:CF:00:00:00– F8:E5:CF: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

F8:E5:CF:00:00:00 F8:E5:CF:7F:FF:FF F8:E5:CF:FF:FF:FF

Other blocks registered to CGI IT UK LIMITED

1C:82:59:60:00:00 /28 MA-M