Bosch (zhuhai) Security Systems Company, 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.

PrefixEC:74:CD:A0:00:00 /28

Vendor address20 Ji Chang Bei Road, Qingwan Industrial Estate, | Sanzao Town, Jinwan District Zhuhai Guangdong CN 519040

Country🇨🇳 China

RegisteredNov 13, 2024

Block rangeEC:74:CD:A0:00:00– EC:74:CD:AF: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

EC:74:CD:A0:00:00 EC:74:CD:A7:FF:FF EC:74:CD:AF:FF:FF

Where this block sits

Previous EC:74:CD:90:00:00 /28 Sound Health Systems Next EC:74:CD:B0:00:00 /28 Hitachi Rail GTS Austria GmbH

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

Bosch (zhuhai) Security Systems Company, Ltd. holds 1 registered blocks in the IEEE registry, ranking #7,283 of 33,427 organizations by block count.