MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:01:9C:00:00:00 /24
Vendor address61 Bill Leathem Dr Nepean ON CA K2J 0P7
Country🇨🇦 Canada
RegisteredSep 8, 2000
Block range00:01:9C:00:00:00– 00:01:9C: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 →
Ownership timeline
- Sep 8, 2000 – Jul 26, 2023 JDS Uniphase Inc. name changed
- Jul 26, 2023 – present Lumentum
Example addresses in this block
Where this block sits
Previous
00:01:9B:00:00:00 /24
Kyoto Microcomputer Co., Ltd.
Next
00:01:9D:00:00:00 /24
E-Control Systems, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Lumentum holds 4 registered blocks in the IEEE registry, ranking #768 of 33,427 organizations by block count.
Other blocks registered to Lumentum