Zhen Shi Information Technology (Shanghai) Co., Ltd. (78:8B:2A:00:00:00 /24)

Zhen Shi Information Technology (Shanghai) Co., Ltd. MA-L

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

Prefix78:8B:2A:00:00:00 /24

Vendor address5F, Building 3?No. 401 Caobao Road, Xuhui District, Shanghai, China Shanghai Shanghai CN 200233

Block range78:8B:2A:00:00:00– 78:8B:2A: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

78:8B:2A:00:00:00 78:8B:2A:7F:FF:FF 78:8B:2A:FF:FF:FF

Other blocks registered to Zhen Shi Information Technology (Shanghai) Co., Ltd.

10:7B:93:00:00:00 /24 MA-L 6C:2D:24:00:00:00 /24 MA-L