Which company owns MAC address prefix FC:FE:77?

MAC address prefix FC:FE:77 is registered to Hitachi Reftechno, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:FE:77 has a network interface built by Hitachi Reftechno, Inc..

What is the OUI FC:FE:77?

FC:FE:77 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi Reftechno, Inc.. It covers every address from FC:FE:77:00:00:00 to FC:FE:77:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-FE-77.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:FE:77:00:00:00 that is FC:FE:77 — 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 Hitachi Reftechno, Inc. located?

Hitachi Reftechno, Inc. is listed at 709-2 Tomita Tochigi-shi Tochigi-ken JP 329-4404 in the IEEE OUI registry entry for FC:FE:77. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hitachi Reftechno, Inc.

MAC address prefix FC:FE:77 is registered to Hitachi Reftechno, Inc. in the IEEE OUI registry. Any device whose MAC address begins with FC:FE:77 has a network interface built by Hitachi Reftechno, Inc.. 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:FE:77:00:00:00 to FC:FE:77:FF:FF:FF.

OUI prefix: FC:FE:77
Hyphen form: FC-FE-77
MAC range: FC:FE:77:00:00:00 – FC:FE:77:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hitachi Reftechno, Inc.
Address: 709-2 Tomita Tochigi-shi Tochigi-ken JP 329-4404
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 "Hitachi Reftechno, Inc."
archived source →
2026-07-17Assigned to "Hitachi Reftechno, Inc."

Nearby in the registry

The prefixes assigned immediately before and after FC:FE:77:

FAQ

Which company owns MAC address prefix FC:FE:77?: MAC address prefix FC:FE:77 is registered to Hitachi Reftechno, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:FE:77 has a network interface built by Hitachi Reftechno, Inc..
What is the OUI FC:FE:77?: FC:FE:77 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi Reftechno, Inc.. It covers every address from FC:FE:77:00:00:00 to FC:FE:77:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-FE-77.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:FE:77:00:00:00 that is FC:FE:77 — 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 Hitachi Reftechno, Inc. located?: Hitachi Reftechno, Inc. is listed at 709-2 Tomita Tochigi-shi Tochigi-ken JP 329-4404 in the IEEE OUI registry entry for FC:FE:77. This is the address the organization registered with the IEEE, which may differ from its current operating address.