Công ty Cổ phần Thiết bị Công nghiệp GEIC

MA-L

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

Prefix4C:AD:DF:00:00:00 /24

Vendor address52 Lê Đại Hành, phường Lê Đại Hành, quận Hai Bà Trưng Thành phố Hà Nội VN 000084

RegisteredJun 27, 2025

Block range4C:AD:DF:00:00:00– 4C:AD:DF: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

4C:AD:DF:00:00:00 4C:AD:DF:7F:FF:FF 4C:AD:DF:FF:FF:FF

Where this block sits

Công ty Cổ phần Thiết bị Công nghiệp GEIC holds 1 registered blocks in the IEEE registry, ranking #7,610 of 33,421 organizations by block count.