MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:20:96:00:00:00 /24
Vendor addressRobershaw Industrial Products Marysville TN US 37801
Country🇺🇸 United States
RegisteredApr 22, 1998
Block range00:20:96:00:00:00– 00:20:96: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
- Apr 22, 1998 – Oct 24, 2001 SIEBE ENVIRONMENTAL CONTROLS name changedaddress changed
- Oct 24, 2001 – present Invensys
Example addresses in this block
Where this block sits
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00:20:95:00:00:00 /24
RIVA ELECTRONICS
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APPLIED SIGNAL TECHNOLOGY
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Invensys holds 1 registered blocks in the IEEE registry, ranking #16,514 of 33,427 organizations by block count.