MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix2C:1B:8E:00:00:00 /24
Vendor addressByd Industrial Park, Yan 'an Road, Kuichong Town, Longgang District, Shenzhen City 深圳 CN 518000
RegisteredAug 15, 2026
Block range2C:1B:8E:00:00:00– 2C:1B:8E: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

Where this block sits

BYD Semiconductor Co,Ltd holds 1 registered blocks in the IEEE registry, ranking #7,575 of 33,427 organizations by block count.