MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:20:0F:00:00:00 /24
Vendor addressTachibana Bldg Taito-ku Tokyo JP 110-0003
Country🇯🇵 Japan
RegisteredApr 22, 1998
Block range00:20:0F:00:00:00– 00:20:0F: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
- Apr 22, 1998 – Jul 11, 2015 TANBAC CO., LTD. name changedaddress changed
- Jul 11, 2015 – present EBRAINS Inc
Example addresses in this block
Where this block sits
Previous
00:20:0E:00:00:00 /24
NSSLGlobal Technologies AS
Next
00:20:10:00:00:00 /24
JEOL SYSTEM TECHNOLOGY CO. LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
EBRAINS Inc holds 1 registered blocks in the IEEE registry, ranking #11,114 of 33,427 organizations by block count.