Polysense (Beijing) Technologies Co. Ltd (78:20:BD:00:00:00 /24)

Polysense (Beijing) Technologies Co. Ltd MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix78:20:BD:00:00:00 /24

Vendor address9 Shangdi 3rd Street, D508B3/5(4)F Bldg D, Haidian Dist. Beijing CN 100085

Block range78:20:BD:00:00:00– 78:20:BD: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

78:20:BD:00:00:00 78:20:BD:7F:FF:FF 78:20:BD:FF:FF:FF