MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:09:7D:00:00:00 /24
Vendor addressP.O.BOX 174 Tampere FI 33101
Country🇫🇮 Finland
RegisteredMar 29, 2002
Block range00:09:7D:00:00:00– 00:09:7D:FF:FF:FF
Address capacity16,777,216
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
00:09:7C:00:00:00 /24
Cisco Systems, Inc
Next
00:09:7E:00:00:00 /24
IMI TECHNOLOGY CO., LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SecWell Networks Oy holds 1 registered blocks in the IEEE registry, ranking #25,524 of 33,421 organizations by block count.