MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:9F:10:00 /36
Vendor addressUnit B, The Apex Newport Isle of Wight GB PO30 5XW
Country🇬🇧 United Kingdom
RegisteredAug 15, 2014
Block range70:B3:D5:9F:10:00– 70:B3:D5:9F:1F: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
- Aug 15, 2014 – Dec 11, 2024 RFEL Ltd name changed
- Dec 11, 2024 – present Rheinmetall Electronics UK Ltd
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.
Rheinmetall Electronics UK Ltd holds 2 registered blocks in the IEEE registry, ranking #2,846 of 33,421 organizations by block count.
Other blocks registered to Rheinmetall Electronics UK Ltd