AVIC JONHON OPTRONIC 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.

Prefix30:0A:60:40:00:00 /28

Vendor addressZhoushan Road10,Jianxi District,Luoyang City Luoyang City Henan Province CN 471003

RegisteredJul 8, 2018

Block range30:0A:60:40:00:00– 30:0A:60:4F: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

30:0A:60:40:00:00 30:0A:60:47:FF:FF 30:0A:60:4F:FF:FF

Where this block sits

Previous 30:0A:60:30:00:00 /28 Intergard do Brasil Ind e Com de Eletr e Mec Ltda Next 30:0A:60:50:00:00 /28 A9

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

AVIC JONHON OPTRONIC TECHNOLOGY CO., LTD. holds 1 registered blocks in the IEEE registry, ranking #6,049 of 33,421 organizations by block count.