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MAC prefix B4:4C:90

Assigned by the IEEE to Cisco Systems, Inc.

Prefix
B4:4C:90   B4-4C-90   B44C.90
Block type
MA-L (16,777,216 addresses)
Address range
B4:4C:90:00:00:00 – B4:4C:90:FF:FF:FF
Organization
Cisco Systems, Inc
Registered address
80 West Tasman Drive, San Jose CA 94568, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up B4:4C:90:00:00:00

Cisco Systems, Inc holds 1112 blocks in total: see all. Source: IEEE Registration Authority public listing.