MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:30:54:00:00:00 /24
Vendor address5F., No. 10, Daye Rd., Beitou Dist. Taipei City TW 112030
Country🇹🇼 Taiwan
RegisteredSep 8, 2000
Block range00:30:54:00:00:00– 00:30:54: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 →
Ownership timeline
- Sep 8, 2000 – Jul 3, 2020 CASTLENET TECHNOLOGY, INC. name changed
- Jul 3, 2020 – present Castlenet Technology Inc.
Example addresses in this block
Where this block sits
Previous
00:30:53:00:00:00 /24
Basler AG
Next
00:30:55:00:00:00 /24
Renesas Technology America, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Castlenet Technology Inc. holds 5 registered blocks in the IEEE registry, ranking #560 of 33,427 organizations by block count.
Other blocks registered to Castlenet Technology Inc.