MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix30:3D:51:20:00:00 /28
Vendor addressPlot No 3 & 3A, EOIZ Industrial Area, Sy.No.85 and 86, KIADB, Whitefield, Bengaluru Karnataka IN 560066
Country🇮🇳 India
RegisteredMay 4, 2022
Block range30:3D:51:20:00:00– 30:3D:51:2F: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
30:3D:51:10:00:00 /28
SHENZHEN WLINK TECHNOLOGY CO., LTD.
Next
30:3D:51:30:00:00 /28
S & A Systems
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Harman Connected Services Corporation India Pvt. Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,169 of 33,427 organizations by block count.
Other blocks registered to Harman Connected Services Corporation India Pvt. Ltd.