Which company owns MAC address prefix 80:C4:5D?

MAC address prefix 80:C4:5D is registered to IPG Laser GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:C4:5D has a network interface built by IPG Laser GmbH.

What is the OUI 80:C4:5D?

80:C4:5D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IPG Laser GmbH. It covers every address from 80:C4:5D:00:00:00 to 80:C4:5D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-C4-5D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:C4:5D:00:00:00 that is 80:C4:5D — 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 IPG Laser GmbH located?

IPG Laser GmbH is listed at Carl-Benz-Strasse 28 Burbach DE 57299 in the IEEE OUI registry entry for 80:C4:5D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

IPG Laser GmbH

MAC address prefix 80:C4:5D is registered to IPG Laser GmbH in the IEEE OUI registry. Any device whose MAC address begins with 80:C4:5D has a network interface built by IPG Laser 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 80:C4:5D:00:00:00 to 80:C4:5D:FF:FF:FF.

OUI prefix: 80:C4:5D
Hyphen form: 80-C4-5D
MAC range: 80:C4:5D:00:00:00 – 80:C4:5D:FF:FF:FF
Addresses in block: 16,777,216
Organization: IPG Laser GmbH
Address: Carl-Benz-Strasse 28 Burbach DE 57299
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.

2023-07-11Assigned to "IPG Laser GmbH"
archived source →
2026-07-17Assigned to "IPG Laser GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 80:C4:5D:

FAQ

Which company owns MAC address prefix 80:C4:5D?: MAC address prefix 80:C4:5D is registered to IPG Laser GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:C4:5D has a network interface built by IPG Laser GmbH.
What is the OUI 80:C4:5D?: 80:C4:5D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IPG Laser GmbH. It covers every address from 80:C4:5D:00:00:00 to 80:C4:5D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-C4-5D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:C4:5D:00:00:00 that is 80:C4:5D — 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 IPG Laser GmbH located?: IPG Laser GmbH is listed at Carl-Benz-Strasse 28 Burbach DE 57299 in the IEEE OUI registry entry for 80:C4:5D. This is the address the organization registered with the IEEE, which may differ from its current operating address.