MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:20:07:00:00:00 /24
Vendor address1401 MCCORMICK DRIVE LANDOVER MD US 20785
Country🇺🇸 United States
RegisteredApr 22, 1998
Block range00:20:07:00:00:00– 00:20:07: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
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00:20:06:00:00:00 /24
GARRETT COMMUNICATIONS, INC.
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00:20:08:00:00:00 /24
CABLE & COMPUTER TECHNOLOGY
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SFA, INC. holds 1 registered blocks in the IEEE registry, ranking #25,817 of 33,427 organizations by block count.