3COM

MA-L

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

Prefix02:C0:8C:00:00:00 /24

Vendor address5400 BAYFRONT PLAZA SANTA CLARA CA US 95052

Country🇺🇸 United States

RegisteredSep 8, 2000

Block range02:C0:8C:00:00:00– 02:C0:8C: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 →

Ownership timeline

Sep 8, 2000 – May 24, 2018 3COM CORPORATION name changed
May 24, 2018 – present 3COM

Example addresses in this block

02:C0:8C:00:00:00 02:C0:8C:7F:FF:FF 02:C0:8C:FF:FF:FF

Where this block sits

3COM holds 20 registered blocks in the IEEE registry, ranking #173 of 33,421 organizations by block count.

Other blocks registered to 3COM

00:01:02:00:00:00 /24 MA-L 00:01:03:00:00:00 /24 MA-L 00:02:9C:00:00:00 /24 MA-L 00:04:75:00:00:00 /24 MA-L 00:04:76:00:00:00 /24 MA-L 00:06:8C:00:00:00 /24 MA-L 00:0A:5E:00:00:00 /24 MA-L 00:10:4B:00:00:00 /24 MA-L 00:10:5A:00:00:00 /24 MA-L 00:20:AF:00:00:00 /24 MA-L 00:26:54:00:00:00 /24 MA-L 00:50:04:00:00:00 /24 MA-L