MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0C:68:00:00:00 /24
Vendor address201 Jones Road Waltham MA US 02451
Country🇺🇸 United States
RegisteredFeb 7, 2003
Block range00:0C:68:00:00:00– 00:0C:68: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
- Feb 7, 2003 – Mar 1, 2007 Oasis Semiconductor, Inc. name changed
- Mar 1, 2007 – present SigmaTel, Inc.
Example addresses in this block
Where this block sits
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00:0C:67:00:00:00 /24
OYO ELECTRIC CO.,LTD
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00:0C:69:00:00:00 /24
National Radio Astronomy Observatory
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SigmaTel, Inc. holds 1 registered blocks in the IEEE registry, ranking #27,358 of 33,427 organizations by block count.