MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:A5:E0:00 /36
Vendor addressIS Bld.2F, Higashi-shinagawa 3-32-42 Shinagawa-Ku Tokyo JP 140-0002
Country🇯🇵 Japan
RegisteredNov 12, 2022
Block range8C:1F:64:A5:E0:00– 8C:1F:64:A5:EF: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
- Nov 12, 2022 – Nov 13, 2022 XTIA Ltd name changed
- Nov 13, 2022 – present XTIA Ltd.
Example addresses in this block
Where this block sits
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8C:1F:64:A5:D0:00 /36
Shenzhen zhushida Technology lnformation Co.,Ltd
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8C:1F:64:A5:F0:00 /36
Wattson Audio SA
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
XTIA Ltd. holds 1 registered blocks in the IEEE registry, ranking #32,820 of 33,427 organizations by block count.