MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix38:1F:26:40:00:00 /28
Vendor addressIndustrivej 59 Aars DK 9600
Country🇩🇰 Denmark
RegisteredJan 29, 2022
Block range38:1F:26:40:00:00– 38:1F:26:4F: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
38:1F:26:30:00:00 /28
Bosch Automotive Electronics India Pvt. Ltd.
Next
38:1F:26:50:00:00 /28
Zhejiang Huazhou Intelligent Equipment Co,. Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Airmaster A/S holds 1 registered blocks in the IEEE registry, ranking #4,504 of 33,421 organizations by block count.