MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1A:91:00:00:00 /24
Vendor address1 B.S.R. towers, 4-th floor Ramat Gan IL 52573
Country🇮🇱 Israel
RegisteredDec 5, 2006
Block range00:1A:91:00:00:00– 00:1A:91: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
00:1A:90:00:00:00 /24
Trópico Sistemas e Telecomunicações da Amazônia LTDA.
Next
00:1A:92:00:00:00 /24
ASUSTek COMPUTER INC.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
FusionDynamic Ltd. holds 1 registered blocks in the IEEE registry, ranking #13,204 of 33,421 organizations by block count.