MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:B1:00:00:00 /24
Vendor address6 Yoni Netanyahu St. Or-Yehuda IL 60376
Country🇮🇱 Israel
RegisteredAug 18, 2007
Block range00:1D:B1:00:00:00– 00:1D:B1: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
00:1D:B0:00:00:00 /24
FuJian HengTong Information Technology Co.,Ltd
Next
00:1D:B2:00:00:00 /24
HOKKAIDO ELECTRIC ENGINEERING CO.,LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Crescendo Networks holds 2 registered blocks in the IEEE registry, ranking #1,806 of 33,421 organizations by block count.
Other blocks registered to Crescendo Networks