MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix50:A0:30:30:00:00 /28
Vendor address2F,Block21, No.55 Chuanhe Road, Pudong New District Shanghai Shanghai CN 201210
Country🇨🇳 China
RegisteredNov 2, 2021
Block range50:A0:30:30:00:00– 50:A0:30:3F: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 →
Ownership timeline
- Nov 2, 2021 – Nov 3, 2021 RealWaer (Shanghai) Intelligent Technology Co., Ltd. name changed
- Nov 3, 2021 – present RealWear (Shanghai) Intelligent Technology Co. Ltd
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
RealWear (Shanghai) Intelligent Technology Co. Ltd holds 1 registered blocks in the IEEE registry, ranking #24,316 of 33,421 organizations by block count.