Resideo (8A:CB:A4:00:00:00 /24)

Resideo CID

CID: a Company ID, not a MAC OUI. It identifies an organization for use in other IEEE 802 protocols, most commonly locally administered ELI-quadrant addresses, rather than being burned into hardware directly.

Prefix8A:CB:A4:00:00:00 /24

Vendor address2 Corporate Center Dr. Melville NY US 11747

Country🇺🇸 United States

Block range8A:CB:A4:00:00:00– 8A:CB:A4:FF:FF:FF

Address capacity16,777,216

AdministrationLocally administered: set by software, not burned into hardware

TransmissionUnicast: addressed to a single device

IEEE 802c quadrantELI: Extended Local Identifier

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

8A:CB:A4:00:00:00 8A:CB:A4:7F:FF:FF 8A:CB:A4:FF:FF:FF

Other blocks registered to Resideo

00:D0:2D:00:00:00 /24 MA-L 10:30:89:00:00:00 /24 MA-L 48:A2:E6:00:00:00 /24 MA-L 5C:FC:E1:00:00:00 /24 MA-L B8:2C:A0:00:00:00 /24 MA-L