MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:EA:C0:00 /36
Vendor addressThe Isis Building Wallingford Oxfordshire GB OX10 8BA
Country🇬🇧 United Kingdom
RegisteredDec 14, 2014
Block range70:B3:D5:EA:C0:00– 70:B3:D5:EA: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 →
Example addresses in this block
Where this block sits
Previous
70:B3:D5:EA:B0:00 /36
APEN GROUP SpA (VAT IT08767740155)
Next
70:B3:D5:EA:D0:00 /36
Cobo, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Kentech Instruments Limited holds 1 registered blocks in the IEEE registry, ranking #17,582 of 33,427 organizations by block count.