MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixEC:74:CD:20:00:00 /28
Vendor addressEltelec Works, Chaul End Lane Luton Beds GB LU4 8EZ
Country🇬🇧 United Kingdom
RegisteredNov 16, 2024
Block rangeEC:74:CD:20:00:00– EC:74:CD: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
EC:74:CD:10:00:00 /28
Shanghai Kanghai Information System CO.,LTD.
Next
EC:74:CD:30:00:00 /28
iSolution Technologies Co.,Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
L.T.H. Electronics Limited holds 1 registered blocks in the IEEE registry, ranking #18,093 of 33,421 organizations by block count.