MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix04:D1:6E:70:00:00 /28
Vendor address8/F, Building B, SOHO Zhongshan Plaza, 1065 West Zhongshan Road Shanghai CN 200051
Country🇨🇳 China
RegisteredAug 13, 2019
Block range04:D1:6E:70:00:00– 04:D1:6E:7F: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
Previous
04:D1:6E:60:00:00 /28
ETL Elektrotechnik Lauter GmbH
Next
04:D1:6E:80:00:00 /28
CHENGDU INTERLINK SCIENCE AND TECHNOLOGY CO.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Envision Energy holds 1 registered blocks in the IEEE registry, ranking #11,925 of 33,427 organizations by block count.