Zettlab Innovation Technology CO.,LTD

MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

Prefix04:A1:6F:D0:00:00 /28

Vendor addressRoom 2002, T33 Full Time Center (Transsion Tower), No. 8 Xianyuan Rd, Nanshan District, Shenzhen, China Shenzhen CN 518055

Country🇨🇳 China

RegisteredFeb 21, 2025

Block range04:A1:6F:D0:00:00– 04:A1:6F:DF:FF:FF

Address capacity1,048,576

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

04:A1:6F:D0:00:00 04:A1:6F:D7:FF:FF 04:A1:6F:DF:FF:FF

Where this block sits

Previous 04:A1:6F:C0:00:00 /28 Broadband International Next 04:A1:6F:E0:00:00 /28 GajShield Infotech India Pvt. Ltd.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Zettlab Innovation Technology CO.,LTD holds 1 registered blocks in the IEEE registry, ranking #33,178 of 33,427 organizations by block count.