MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix78:07:1C:00:00:00 /24
Vendor address3 St. Mary's Court, Main Street Cambridge Cambridgeshire GB CB23 7QS
Country🇬🇧 United Kingdom
RegisteredSep 18, 2022
Block range78:07:1C:00:00:00– 78:07:1C: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
Green Energy Options Ltd holds 2 registered blocks in the IEEE registry, ranking #2,116 of 33,427 organizations by block count.
Other blocks registered to Green Energy Options Ltd