Which company owns MAC address prefix FC:8B:1F?

MAC address prefix FC:8B:1F is registered to GUTOR Electronic in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:8B:1F has a network interface built by GUTOR Electronic.

What is the OUI FC:8B:1F?

FC:8B:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GUTOR Electronic. It covers every address from FC:8B:1F:00:00:00 to FC:8B:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-8B-1F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:8B:1F:00:00:00 that is FC:8B:1F — 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 GUTOR Electronic located?

GUTOR Electronic is listed at Hardstrasse 72-74 Wettingen CH 5430 in the IEEE OUI registry entry for FC:8B:1F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

GUTOR Electronic

MAC address prefix FC:8B:1F is registered to GUTOR Electronic in the IEEE OUI registry. Any device whose MAC address begins with FC:8B:1F has a network interface built by GUTOR Electronic. 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 FC:8B:1F:00:00:00 to FC:8B:1F:FF:FF:FF.

OUI prefix: FC:8B:1F
Hyphen form: FC-8B-1F
MAC range: FC:8B:1F:00:00:00 – FC:8B:1F:FF:FF:FF
Addresses in block: 16,777,216
Organization: GUTOR Electronic
Address: Hardstrasse 72-74 Wettingen CH 5430
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.

2025-08-23Assigned to "GUTOR Electronic"
archived source →
2026-07-17Assigned to "GUTOR Electronic"

Nearby in the registry

The prefixes assigned immediately before and after FC:8B:1F:

FAQ

Which company owns MAC address prefix FC:8B:1F?: MAC address prefix FC:8B:1F is registered to GUTOR Electronic in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:8B:1F has a network interface built by GUTOR Electronic.
What is the OUI FC:8B:1F?: FC:8B:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GUTOR Electronic. It covers every address from FC:8B:1F:00:00:00 to FC:8B:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-8B-1F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:8B:1F:00:00:00 that is FC:8B:1F — 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 GUTOR Electronic located?: GUTOR Electronic is listed at Hardstrasse 72-74 Wettingen CH 5430 in the IEEE OUI registry entry for FC:8B:1F. This is the address the organization registered with the IEEE, which may differ from its current operating address.