MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:29:50:00 /36
Vendor addressKeppel Bay Tower, 1 Harbourfront Avenue #13-03 Singapore Singapore SG 098632
Country🇸🇬 Singapore
RegisteredMay 13, 2025
Block range8C:1F:64:29:50:00– 8C:1F:64:29:5F: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
8C:1F:64:29:40:00 /36
nanoTRONIX Computing Inc.
Next
8C:1F:64:29:60:00 /36
Roog zhi tong Technology(Beijing) Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Ophir Manufacturing Solutions Pte Ltd holds 3 registered blocks in the IEEE registry, ranking #1,211 of 33,427 organizations by block count.
Other blocks registered to Ophir Manufacturing Solutions Pte Ltd