MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:F3:00:00:00 /24
Vendor addressNorra Vallgatan 64 Malmoe SE SE-211 22
Country🇸🇪 Sweden
RegisteredNov 26, 2004
Block range00:12:F3:00:00:00– 00:12:F3: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 26, 2004 – Jul 16, 2022 connectBlue AB name changed
- Jul 16, 2022 – present u-blox AG
Example addresses in this block
Where this block sits
Previous
00:12:F2:00:00:00 /24
Brocade Communications Systems LLC
Next
00:12:F4:00:00:00 /24
Belco International Co.,Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
u-blox AG holds 11 registered blocks in the IEEE registry, ranking #295 of 33,421 organizations by block count.
Other blocks registered to u-blox AG