MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF4:97:9D:50:00:00 /28
Vendor address421 Shepherds Way Morrow OH US 45152
Country🇺🇸 United States
RegisteredAug 7, 2025
Block rangeF4:97:9D:50:00:00– F4:97:9D:5F: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
F4:97:9D:40:00:00 /28
MERRY ELECTRONICS CO., LTD.
Next
F4:97:9D:60:00:00 /28
Camnex Innovations Private Limited
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Warner Technology Corp holds 1 registered blocks in the IEEE registry, ranking #31,904 of 33,421 organizations by block count.