MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:20:3D:00:00:00 /24
Vendor address1985 Douglas Drive Golden Valley MN US 55422
Country🇺🇸 United States
RegisteredApr 22, 1998
Block range00:20:3D:00:00:00– 00:20:3D: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 – Jun 23, 2009 NOVAR ELECTRONICS CORPORATION name changedaddress changed
- Jun 23, 2009 – May 11, 2018 Honeywell ECC name changedaddress changed
- May 11, 2018 – present Honeywell Environmental & Combustion Controls
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.
Honeywell Environmental & Combustion Controls holds 1 registered blocks in the IEEE registry, ranking #15,061 of 33,427 organizations by block count.