MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixC4:BB:89:00:00:00 /24
Vendor address#17 Building, No.1500 Zu Chongzhi Road, Pudong District, 201203, Shanghai, China SHANGHAI SHANGHAI CN 201200
Country🇨🇳 China
RegisteredJun 21, 2026
Block rangeC4:BB:89:00:00:00– C4:BB:89: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
Shanghai High-Flying Electronics Technology Co., Ltd holds 10 registered blocks in the IEEE registry, ranking #319 of 33,421 organizations by block count.
Other blocks registered to Shanghai High-Flying Electronics Technology Co.,Ltd