MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixFC:E4:98:D0:00:00 /28
Vendor address167-169 Great Portland Street London Surrey GB W1W 5PF
Country🇬🇧 United Kingdom
RegisteredJul 3, 2025
Block rangeFC:E4:98:D0:00:00– FC:E4:98:DF: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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FC:E4:98:C0:00:00 /28
Siretta Ltd
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FC:E4:98:E0:00:00 /28
TIH Microelectronics Technology Co. Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Infinity Electronics Ltd holds 2 registered blocks in the IEEE registry, ranking #2,258 of 33,427 organizations by block count.
Other blocks registered to Infinity Electronics Ltd