Communication Machinery Corporation (02:CF:1C:00:00:00 /24)

Communication Machinery Corporation MA-L

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

Prefix02:CF:1C:00:00:00 /24

Vendor address1226 ANACAPA SANTA BARBARA CA US 93101

Country🇺🇸 United States

Block range02:CF:1C:00:00:00– 02:CF:1C:FF:FF:FF

Address capacity16,777,216

AdministrationLocally administered: set by software, not burned into hardware

TransmissionUnicast: addressed to a single device

IEEE 802c quadrantAAI: Administratively Assigned Identifier

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

02:CF:1C:00:00:00 02:CF:1C:7F:FF:FF 02:CF:1C:FF:FF:FF

Other blocks registered to Communication Machinery Corporation

00:0B:16:00:00:00 /24 MA-L 00:CF:1C:00:00:00 /24 MA-L