MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix3C:91:74:00:00:00 /24
Vendor address1301, Zhenye International Business Center, Shenzhen Guandong CN 518000
Country🇨🇳 China
RegisteredMar 23, 2012
Block range3C:91:74:00:00:00– 3C:91:74: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
Where this block sits
ALONG COMMUNICATION TECHNOLOGY holds 1 registered blocks in the IEEE registry, ranking #4,768 of 33,421 organizations by block count.