SHEN ZHEN FUCHANG 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.

Prefix64:31:39:C0:00:00 /28

Vendor addressFloor 4 11 Building Qixing Factory,Niu Cheng 2rd Industrial Area,Xili Nanshan District Shenzhen GUANGDONG CN 518055

Country🇨🇳 China

RegisteredSep 10, 2019

Block range64:31:39:C0:00:00– 64:31:39: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

64:31:39:C0:00:00 64:31:39:C7:FF:FF 64:31:39:CF:FF:FF

Where this block sits

Previous 64:31:39:B0:00:00 /28 Alphago GmbH Next 64:31:39:D0:00:00 /28 ZHEJIANG MOORGEN INTELLIGENT TECHNOLOGY CO.,LTD

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

SHEN ZHEN FUCHANG TECHNOLOGY Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,140 of 33,421 organizations by block count.