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MAC prefix 00:15:5D

Assigned by the IEEE to Microsoft Corporation.

Prefix
00:15:5D   00-15-5D   0015.5D
Block type
MA-L (16,777,216 addresses)
Address range
00:15:5D:00:00:00 – 00:15:5D:FF:FF:FF
Organization
Microsoft Corporation
Registered address
One Microsoft Way, Redmond WA 98052-8300, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:15:5D:00:00:00

Microsoft Corporation holds 85 blocks in total: see all. Source: IEEE Registration Authority public listing.