MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:C1:00:00:00 /24
Vendor address5 Ha'solelim St. Tel Aviv IL 67897
Country🇮🇱 Israel
RegisteredNov 16, 2004
Block range00:12:C1:00:00:00– 00:12:C1: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
- Nov 16, 2004 – Oct 11, 2025 Check Point Software Technologies name changed
- Oct 11, 2025 – present Check Point Software Technologies Ltd.
Example addresses in this block
Where this block sits
Previous
00:12:C0:00:00:00 /24
HotLava Systems, Inc.
Next
00:12:C2:00:00:00 /24
Apex Electronics Factory
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Check Point Software Technologies Ltd. holds 2 registered blocks in the IEEE registry, ranking #1,714 of 33,421 organizations by block count.
Other blocks registered to Check Point Software Technologies Ltd.