MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB0:3D:BF:00:00:00 /24
Vendor address4/F, 3/B, Shayi North Yongfa Science and Technology Park, Shajing Town, Bao'an District, Shenzhen. shenzhen Select State CN 518104
Country🇨🇳 China
RegisteredMar 20, 2026
Block rangeB0:3D:BF:00:00:00– B0:3D:BF: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
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
shenzhen ceita communications technology co.,ltd holds 2 registered blocks in the IEEE registry, ranking #2,977 of 33,427 organizations by block count.
Other blocks registered to shenzhen ceita communications technology co.,ltd