Which company owns MAC address prefix 10:CD:6E?

MAC address prefix 10:CD:6E is registered to FISYS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:CD:6E has a network interface built by FISYS.

What is the OUI 10:CD:6E?

10:CD:6E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FISYS. It covers every address from 10:CD:6E:00:00:00 to 10:CD:6E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-CD-6E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:CD:6E:00:00:00 that is 10:CD:6E — 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 FISYS located?

FISYS is listed at 303 Expotel, 44, Dunsan-daero 117beon-gil, Seo-gu, Daejeon, Korea Daejeon, Korea KR KS015 in the IEEE OUI registry entry for 10:CD:6E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

FISYS

MAC address prefix 10:CD:6E is registered to FISYS in the IEEE OUI registry. Any device whose MAC address begins with 10:CD:6E has a network interface built by FISYS. 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 10:CD:6E:00:00:00 to 10:CD:6E:FF:FF:FF.

OUI prefix: 10:CD:6E
Hyphen form: 10-CD-6E
MAC range: 10:CD:6E:00:00:00 – 10:CD:6E:FF:FF:FF
Addresses in block: 16,777,216
Organization: FISYS
Address: 303 Expotel, 44, Dunsan-daero 117beon-gil, Seo-gu, Daejeon, Korea Daejeon, Korea KR KS015
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.

2018-12-21Assigned to "FISYS"
archived source →
2026-07-17Assigned to "FISYS"

Nearby in the registry

The prefixes assigned immediately before and after 10:CD:6E:

FAQ

Which company owns MAC address prefix 10:CD:6E?: MAC address prefix 10:CD:6E is registered to FISYS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:CD:6E has a network interface built by FISYS.
What is the OUI 10:CD:6E?: 10:CD:6E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FISYS. It covers every address from 10:CD:6E:00:00:00 to 10:CD:6E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-CD-6E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:CD:6E:00:00:00 that is 10:CD:6E — 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 FISYS located?: FISYS is listed at 303 Expotel, 44, Dunsan-daero 117beon-gil, Seo-gu, Daejeon, Korea Daejeon, Korea KR KS015 in the IEEE OUI registry entry for 10:CD:6E. This is the address the organization registered with the IEEE, which may differ from its current operating address.