Jiaxing Cyber Sensor Intelligent 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.

Prefix78:78:35:40:00:00 /28

Vendor addressRoom 301, Building 9, No.89 YueMing Road Tongxiang Zhejiang CN 314500

RegisteredJun 26, 2025

Block range78:78:35:40:00:00– 78:78:35:4F: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

78:78:35:40:00:00 78:78:35:47:FF:FF 78:78:35:4F:FF:FF

Where this block sits

Previous 78:78:35:30:00:00 /28 SHENZHEN CHUANGWEI ELECTRONIC APPLIANCE TECH CO., LTD. Next 78:78:35:50:00:00 /28 IRISS Inc.

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

Jiaxing Cyber Sensor Intelligent Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #17,176 of 33,427 organizations by block count.