SHANGHAI XIANGCHENG COMMUNICATION TECHNOLOGY CO., LTD (DC:81:3D:00:00:00 /24)

SHANGHAI XIANGCHENG COMMUNICATION TECHNOLOGY CO., LTD MA-L

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

PrefixDC:81:3D:00:00:00 /24

Vendor addressRoom 211-5, Building 1, No. 290 Wankang Road, Minhang District Shanghai Shanghai CN 201100

Block rangeDC:81:3D:00:00:00– DC:81:3D: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 →

Example addresses in this block

DC:81:3D:00:00:00 DC:81:3D:7F:FF:FF DC:81:3D:FF:FF:FF

Other blocks registered to SHANGHAI XIANGCHENG COMMUNICATION TECHNOLOGY CO., LTD

58:BD:35:00:00:00 /24 MA-L