MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix00:55:DA:B0:00:00 /28
Vendor addressSuite 303 - 511 King St W Toronto ON CA M5V 1K4
Country🇨🇦 Canada
RegisteredOct 16, 2015
Block range00:55:DA:B0:00:00– 00:55:DA:BF: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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00:55:DA:A0:00:00 /28
Speechlab
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00:55:DA:C0:00:00 /28
Donguan WideLink Communication Technology Co.,Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Interaxon Inc holds 1 registered blocks in the IEEE registry, ranking #16,385 of 33,427 organizations by block count.