Shenzhen Huiqincai Network Communication 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.

Prefix4C:81:BE:C0:00:00 /28

Vendor addressRoom 703, 7th Floor, Building 82, Langkou Industrial Zone, Langkou Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Shenzhen Guangdong CN 518000

Country🇨🇳 China

Block range4C:81:BE:C0:00:00– 4C:81:BE:CF: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

4C:81:BE:C0:00:00 4C:81:BE:C7:FF:FF 4C:81:BE:CF:FF:FF

Where this block sits

Previous 4C:81:BE:B0:00:00 /28 Guangdong Lidun New Energy Technology Co., Ltd. Next 4C:81:BE:D0:00:00 /28 BEIJING CUNYIN CHENGQI TECHNOLOGY CO., LTD.

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

Shenzhen Huiqincai Network Communication Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,561 of 33,427 organizations by block count.