shanghai Rinlink 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.

Prefix48:0B:B2:30:00:00 /28

Vendor addressRoom1510,ROAD Xiuwen,Minhang District shanghai CN 201100

RegisteredJan 14, 2018

Block range48:0B:B2:30:00:00– 48:0B:B2:3F: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

48:0B:B2:30:00:00 48:0B:B2:37:FF:FF 48:0B:B2:3F:FF:FF

Where this block sits

Previous 48:0B:B2:20:00:00 /28 Thales CETCA Avionics CO., Ltd Next 48:0B:B2:40:00:00 /28 Hangzhou Freely Communication Co., Ltd.

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

shanghai Rinlink Intelligent Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,018 of 33,421 organizations by block count.