HONG KONG WATER WORLD TECHNOLOGY CO. LIMITED
MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixA4:D8:CA:00:00:00 /24
Vendor addressRM B-C, 24/F, GOLDEN BEAR INDUSTRIAL CENTRE, 66-82 CHAI WAN KOK STREET,TSUEN WAN. N.T. Hong Kong HK 999077
CountryðŸ‡ðŸ‡° Hong Kong
Block rangeA4:D8:CA:00:00:00– A4:D8:CA: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