MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:03:9C:00:00:00 /24
Vendor address980 Linda Vista Avenue Mountain View CA US 94043
Country🇺🇸 United States
RegisteredNov 9, 2000
Block range00:03:9C:00:00:00– 00:03:9C: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 →
Example addresses in this block
Where this block sits
Previous
00:03:9B:00:00:00 /24
NetChip Technology, Inc.
Next
00:03:9D:00:00:00 /24
Qisda Corporation
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
OptiMight Communications, Inc. holds 1 registered blocks in the IEEE registry, ranking #22,187 of 33,421 organizations by block count.