macadress

Digital Control Technology Limited

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixAC:91:5D:00:00:00 /24
Vendor addressUnit 1805-06, 18/F, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong Kong Hong Kong HK 00000
Country🇭🇰  Hong Kong
RegisteredMar 29, 2025
Block rangeAC:91:5D:00:00:00– AC:91:5D: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.

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Example addresses in this block

AC:91:5D:00:00:00 AC:91:5D:7F:FF:FF AC:91:5D:FF:FF:FF

Where this block sits

Digital Control Technology Limited holds 1 registered blocks in the IEEE registry, ranking #10,363 of 33,421 organizations by block count.