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MAC prefix F4:B3:B1

Assigned by the IEEE to Silicon Laboratories.

Prefix
F4:B3:B1   F4-B3-B1   F4B3.B1
Block type
MA-L (16,777,216 addresses)
Address range
F4:B3:B1:00:00:00 – F4:B3:B1:FF:FF:FF
Organization
Silicon Laboratories
Registered address
400 West Cesar Chavez Street, Austin TX 78701, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up F4:B3:B1:00:00:00

Silicon Laboratories holds 76 blocks in total: see all. Source: IEEE Registration Authority public listing.