OUI Lookup
000121
WatchGuard Technologies, Inc.
Manufacturer Information
- OUI Prefix
- 000121
- Manufacturer
- WatchGuard Technologies, Inc.
- Address
- 605 Fifth Ave. S Seattle WA US 98104-3892
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 2
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 000121
The OUI prefix 000121 is assigned to WatchGuard Technologies, Inc., based in 605 Fifth Ave. S Seattle WA US 98104-3892 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to WatchGuard Technologies, Inc..