SHENZHEN KOSKY 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.

PrefixB4:4D:43:C0:00:00 /28

Vendor address5th Floor, Building A, Wanhe Technology Building, Fenghuang Street , Guangming District Shenzhen Guangdong CN 518107

Country🇨🇳 China

RegisteredMar 2, 2023

Block rangeB4:4D:43:C0:00:00– B4:4D:43: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

B4:4D:43:C0:00:00 B4:4D:43:C7:FF:FF B4:4D:43:CF:FF:FF

Where this block sits

Previous B4:4D:43:B0:00:00 /28 Paulmann Licht GmbH Next B4:4D:43:D0:00:00 /28 Shenzhen CreatLentem Technology Co.,Ltd

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

SHENZHEN KOSKY TECHNOLOGY CO.,LTD. holds 1 registered blocks in the IEEE registry, ranking #26,639 of 33,427 organizations by block count.