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:DE:19:C0:00:00 /28
Vendor addressBuilding 10th, Baiwangxin Industrial Park, No. 1002 Songbai Road, Xili Street, Shenzhen Guangdong CN 518100
Country🇨🇳 China
RegisteredNov 5, 2019
Block range50:DE:19:C0:00:00– 50:DE:19: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
Where this block sits
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50:DE:19:B0:00:00 /28
BRAINWARE TERAHERTA INFORMATION TECHNOLOGY CO.,LTD.
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50:DE:19:D0:00:00 /28
Penny & Giles Aerospace Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Vipstech Co., Ltd holds 2 registered blocks in the IEEE registry, ranking #3,040 of 33,427 organizations by block count.
Other blocks registered to Shenzhen Vipstech Co., Ltd