MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:50:03:00:00:00 /24
Vendor address4300 44TH Street, S.E. Grand Rapids MI US 49512
Country🇺🇸 United States
RegisteredSep 8, 2000
Block range00:50:03:00:00:00– 00:50:03: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 – Jun 10, 2011 GRETAG MACBETH AG name changedaddress changedcountry changed
- Jun 10, 2011 – present Xrite Inc
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.
Xrite Inc holds 1 registered blocks in the IEEE registry, ranking #32,791 of 33,421 organizations by block count.