MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix74:72:B0:00:00:00 /24
Vendor addressNo.6, 4th Yunpu Road, Yunpu Industry District Guangzhou Guangdong CN 510530
Country🇨🇳 China
RegisteredMay 4, 2016
Block range74:72:B0:00:00:00– 74:72:B0: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
Guangzhou Shiyuan Electronics Co., Ltd. holds 3 registered blocks in the IEEE registry, ranking #1,076 of 33,427 organizations by block count.
Other blocks registered to Guangzhou Shiyuan Electronics Co., Ltd.