MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:54:00:00:00 /24
Vendor address6F, NO.74,ZHOU-Z ST., Taipei TW 114
Country🇹🇼 Taiwan
RegisteredAug 18, 2007
Block range00:1D:54:00:00:00– 00:1D:54: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
Where this block sits
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00:1D:53:00:00:00 /24
S&O Electronics (Malaysia) Sdn. Bhd.
Next
00:1D:55:00:00:00 /24
ZANTAZ, Inc
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Sunnic Technology & Merchandise INC. holds 1 registered blocks in the IEEE registry, ranking #28,585 of 33,427 organizations by block count.