MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:21:F7:00:00:00 /24
Vendor address8000 Foothills Blvd Roseville CA US 95747
Country🇺🇸 United States
RegisteredJun 18, 2008
Block range00:21:F7:00:00:00– 00:21:F7: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
- Jun 18, 2008 – Mar 27, 2013 ProCurve Networking by HP name changed
- Mar 27, 2013 – present HPN Supply Chain
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HPN Supply Chain holds 5 registered blocks in the IEEE registry, ranking #587 of 33,427 organizations by block count.
Other blocks registered to HPN Supply Chain