Justone Technologies Co., Ltd.
MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixEC:7C:74:00:00:00 /24
Vendor addressTongguang Building F19, 12# South Agriculture Exhibition Center Road, Beijing CN 100125
Country🇨🇳 China
Block rangeEC:7C:74:00:00:00– EC:7C: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.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Example addresses in this block