Which company owns MAC address prefix C8:56:63?

MAC address prefix C8:56:63 is registered to Sunflex Europe GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:56:63 has a network interface built by Sunflex Europe GmbH.

What is the OUI C8:56:63?

C8:56:63 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sunflex Europe GmbH. It covers every address from C8:56:63:00:00:00 to C8:56:63:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-56-63.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:56:63:00:00:00 that is C8:56:63 — 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 Sunflex Europe GmbH located?

Sunflex Europe GmbH is listed at Konrad-Zuse-Str. 13 Schwerte NRW DE 58239 in the IEEE OUI registry entry for C8:56:63. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Sunflex Europe GmbH

MAC address prefix C8:56:63 is registered to Sunflex Europe GmbH in the IEEE OUI registry. Any device whose MAC address begins with C8:56:63 has a network interface built by Sunflex Europe GmbH. 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 C8:56:63:00:00:00 to C8:56:63:FF:FF:FF.

OUI prefix: C8:56:63
Hyphen form: C8-56-63
MAC range: C8:56:63:00:00:00 – C8:56:63:FF:FF:FF
Addresses in block: 16,777,216
Organization: Sunflex Europe GmbH
Address: Konrad-Zuse-Str. 13 Schwerte NRW DE 58239
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 "Sunflex Europe GmbH"
archived source →
2026-07-17Assigned to "Sunflex Europe GmbH"

Nearby in the registry

The prefixes assigned immediately before and after C8:56:63:

FAQ

Which company owns MAC address prefix C8:56:63?: MAC address prefix C8:56:63 is registered to Sunflex Europe GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:56:63 has a network interface built by Sunflex Europe GmbH.
What is the OUI C8:56:63?: C8:56:63 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sunflex Europe GmbH. It covers every address from C8:56:63:00:00:00 to C8:56:63:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-56-63.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:56:63:00:00:00 that is C8:56:63 — 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 Sunflex Europe GmbH located?: Sunflex Europe GmbH is listed at Konrad-Zuse-Str. 13 Schwerte NRW DE 58239 in the IEEE OUI registry entry for C8:56:63. This is the address the organization registered with the IEEE, which may differ from its current operating address.