MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:30:AD:00:00:00 /24
Vendor addressTECHNOLOGIES CENTER P.R. CN
Country🇨🇳 China
RegisteredSep 8, 2000
Block range00:30:AD:00:00:00– 00:30:AD: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
Previous
00:30:AC:00:00:00 /24
Systeme Lauer GmbH & Co., Ltd.
Next
00:30:AE:00:00:00 /24
Times N System, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SHANGHAI COMMUNICATION holds 1 registered blocks in the IEEE registry, ranking #25,902 of 33,427 organizations by block count.