MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:85:C0:00 /36
Vendor address4 Gleneagles Court Wakefield UK GB WF6 1WW
Country🇬🇧 United Kingdom
RegisteredJun 15, 2014
Block range70:B3:D5:85:C0:00– 70:B3:D5:85:CF:FF
Address capacity4,096
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
- Jun 15, 2014 – Oct 13, 2021 Robot Pub Group name changed
- Oct 13, 2021 – present Tabology
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Tabology holds 2 registered blocks in the IEEE registry, ranking #3,192 of 33,421 organizations by block count.
Other blocks registered to Tabology