Fortinet holds about 26 MA-L blocks registered as "Fortinet, Inc." at 899 Kifer Road, Sunnyvale, CA (the oldest block, 00:09:0F, lists 1090 Kifer Road). These OUIs appear on Fortinet's security-fabric hardware: FortiGate firewalls/security appliances, FortiSwitch switches, FortiAP wireless access points, and FortiWiFi units. FortiGate next-generation firewalls running FortiOS are among the most common enterprise security appliances worldwide, and 00:09:0F is the long-standing original Fortinet OUI. The brand maps cleanly to the device maker. For triage, a Fortinet OUI typically marks a perimeter or segmentation security appliance (FortiGate) or a managed AP/switch; an unexpected Fortinet OUI can indicate an unsanctioned firewall or a FortiAP — worth verifying it's part of the managed security fabric.
- IEEE assignment
- ~26 prefixes → Fortinet, Inc., registered Sunnyvale, CA, US [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; ~26 blocks [Confirmed assignment] — maclookup.app (IEEE-derived; count is a current third-party snapshot and drifts). NOTE: IEEE's public OUI data publishes NO assignment/registration date (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" from third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- 899 Kifer Road, Sunnyvale, CA 94086, US (oldest block 00:09:0F lists 1090 Kifer Road) [Confirmed] — IEEE MA-L
- Company status
- active [Confirmed] — fortinet.com
- Device types
- FortiGate firewalls/security appliances, FortiSwitch switches, FortiAP wireless APs, FortiWiFi [Confirmed] — maclookup.app
- Notable products
- FortiGate (flagship NGFW), FortiOS
- Verified prefix sample
- 00:09:0F, 00:0C:E6, 08:5B:0E, 90:6C:AC, E8:1C:BA, E0:23:FF, 94:FF:3C, E8:ED:D6, 38:C0:EA [Confirmed] — maclookup.app
- Special note
- FortiGate appliances are among the most common enterprise security devices worldwide; 00:09:0F is the long-standing original Fortinet OUI. [Confirmed] — maclookup.app
- Related vendors
- none major
- Analyst note
- A Fortinet OUI typically marks a perimeter/segmentation security appliance (FortiGate) or managed AP/switch; an unexpected Fortinet OUI can indicate an unsanctioned firewall or a FortiAP — verify it's part of the managed security fabric.