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MAC prefix A8:B4:56

Assigned by the IEEE to Cisco Systems, Inc.

Prefix
A8:B4:56   A8-B4-56   A8B4.56
Block type
MA-L (16,777,216 addresses)
Address range
A8:B4:56:00:00:00 – A8:B4:56: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 A8:B4:56:00:00:00

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