MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:07:7C:00:00:00 /24
Vendor addressStora Sundby Sweden SE SE-640 40
Country🇸🇪 Sweden
RegisteredOct 24, 2001
Block range00:07:7C:00:00:00– 00:07:7C: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
- Oct 24, 2001 – Jun 23, 2009 OnTime Networks name changedaddress changedcountry changed
- Jun 23, 2009 – Jan 9, 2019 Westermo Teleindustri AB name changedaddress changed
- Jan 9, 2019 – present Westermo Network Technologies AB
Example addresses in this block
Where this block sits
Previous
00:07:7B:00:00:00 /24
Millimetrix Broadband Networks
Next
00:07:7D:00:00:00 /24
Cisco Systems, Inc
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Westermo Network Technologies AB holds 3 registered blocks in the IEEE registry, ranking #1,391 of 33,421 organizations by block count.
Other blocks registered to Westermo Network Technologies AB