MAC Address Lookup

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


WatchGuard Technologies, Inc.

MAC prefix: 00:01:21

Vendor name: WatchGuard Technologies, Inc.

MAC range: 00:01:21:00:00:00 - 00:01:21:FF:FF:FF

Block Size: 16777215 (16.77 M)


605 Fifth Ave. S
Seattle WA 98104-3892

Type MA-L

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

Initial registration: 09 November 2000

Last updated: 13 June 2018

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