Which company owns MAC address prefix F4:1E:26?

MAC address prefix F4:1E:26 is registered to Simon-Kaloi Engineering in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:1E:26 has a network interface built by Simon-Kaloi Engineering.

What is the OUI F4:1E:26?

F4:1E:26 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Simon-Kaloi Engineering. It covers every address from F4:1E:26:00:00:00 to F4:1E:26:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-1E-26.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F4:1E:26:00:00:00 that is F4:1E:26 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is Simon-Kaloi Engineering located?

Simon-Kaloi Engineering is listed at 31192 La Baya Drive Unit G Westlake Village CA US 91362 in the IEEE OUI registry entry for F4:1E:26. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Simon-Kaloi Engineering

MAC address prefix F4:1E:26 is registered to Simon-Kaloi Engineering in the IEEE OUI registry. Any device whose MAC address begins with F4:1E:26 has a network interface built by Simon-Kaloi Engineering. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from F4:1E:26:00:00:00 to F4:1E:26:FF:FF:FF.

OUI prefix: F4:1E:26
Hyphen form: F4-1E-26
MAC range: F4:1E:26:00:00:00 – F4:1E:26:FF:FF:FF
Addresses in block: 16,777,216
Organization: Simon-Kaloi Engineering
Address: 31192 La Baya Drive Unit G Westlake Village CA US 91362
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "Simon-Kaloi Engineering"
archived source →
2026-07-17Assigned to "Simon-Kaloi Engineering"

Nearby in the registry

The prefixes assigned immediately before and after F4:1E:26:

FAQ

Which company owns MAC address prefix F4:1E:26?: MAC address prefix F4:1E:26 is registered to Simon-Kaloi Engineering in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:1E:26 has a network interface built by Simon-Kaloi Engineering.
What is the OUI F4:1E:26?: F4:1E:26 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Simon-Kaloi Engineering. It covers every address from F4:1E:26:00:00:00 to F4:1E:26:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-1E-26.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F4:1E:26:00:00:00 that is F4:1E:26 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is Simon-Kaloi Engineering located?: Simon-Kaloi Engineering is listed at 31192 La Baya Drive Unit G Westlake Village CA US 91362 in the IEEE OUI registry entry for F4:1E:26. This is the address the organization registered with the IEEE, which may differ from its current operating address.