MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix7C:06:23:00:00:00 /24
Vendor address419 Bridport Road Greenford Middlesex GB UB6 8UA
Country🇬🇧 United Kingdom
RegisteredJul 9, 2013
Block range7C:06:23:00:00:00– 7C:06:23: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
- Jul 9, 2013 – Apr 27, 2016 Ultra Electronics, CIS name changedaddress changed
- Apr 27, 2016 – present Ultra Electronics Sonar System Division
Example addresses in this block
Where this block sits
Ultra Electronics Sonar System Division holds 2 registered blocks in the IEEE registry, ranking #3,320 of 33,427 organizations by block count.
Other blocks registered to Ultra Electronics Sonar System Division