MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:22:40:00 /36
Vendor address6 Eu Tong Sen Street #06-20 The Central Singapore SG 059817
Country🇸🇬 Singapore
RegisteredJan 14, 2018
Block range70:B3:D5:22:40:00– 70:B3:D5:22:4F: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
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70:B3:D5:22:30:00 /36
Research Laboratory of Design Automation, Ltd.
Next
70:B3:D5:22:50:00 /36
RCD Radiokomunikace
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Urbana Smart Solutions Pte Ltd holds 1 registered blocks in the IEEE registry, ranking #31,090 of 33,427 organizations by block count.