MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address


Cisco Systems, Inc

MAC prefix: D4:E8:80

Vendor name: Cisco Systems, Inc

MAC range: D4:E8:80:00:00:00 - D4:E8:80:FF:FF:FF

Block Size: 16777215 (16.77 M)


80 West Tasman Drive
San Jose CA 94568

Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Initial registration: 01 December 2018

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