Espressif Systems (Singapore) Pte. Ltd

MA-L

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

Prefix6C:3D:D8:00:00:00 /24

Vendor address1 FUSIONOPOLIS VIEW #07-02 ECLIPSE Singapore SG 138577

RegisteredJun 21, 2026

Block range6C:3D:D8:00:00:00– 6C:3D:D8: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

6C:3D:D8:00:00:00 6C:3D:D8:7F:FF:FF 6C:3D:D8:FF:FF:FF

Where this block sits

Espressif Systems (Singapore) Pte. Ltd holds 13 registered blocks in the IEEE registry, ranking #238 of 33,421 organizations by block count.

Other blocks registered to Espressif Systems (Singapore) Pte. Ltd

10:A8:5B:00:00:00 /24 MA-L 1C:8B:84:00:00:00 /24 MA-L 1C:E4:CB:00:00:00 /24 MA-L 20:D5:C2:00:00:00 /24 MA-L 3C:0D:0D:00:00:00 /24 MA-L 54:16:A5:00:00:00 /24 MA-L 6C:E2:10:00:00:00 /24 MA-L 9C:96:D5:00:00:00 /24 MA-L AC:A2:6A:00:00:00 /24 MA-L B8:BB:11:00:00:00 /24 MA-L C8:DA:29:00:00:00 /24 MA-L D0:9A:AF:00:00:00 /24 MA-L