Which company owns MAC address prefix 34:D7:37?

MAC address prefix 34:D7:37 is registered to IBG Industriebeteiligungsgesellschaft mbH &b Co. KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:D7:37 has a network interface built by IBG Industriebeteiligungsgesellschaft mbH &b Co. KG.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 34:D7:37:00:00:00 that is 34:D7:37 — 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.

IBG Industriebeteiligungsgesellschaft mbH &b Co. KG

MAC address prefix 34:D7:37 is registered to IBG Industriebeteiligungsgesellschaft mbH &b Co. KG in the IEEE OUI registry. Any device whose MAC address begins with 34:D7:37 has a network interface built by IBG Industriebeteiligungsgesellschaft mbH &b Co. KG. 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 34:D7:37:00:00:00 to 34:D7:37:FF:FF:FF.

OUI prefix: 34:D7:37
Hyphen form: 34-D7-37
MAC range: 34:D7:37:00:00:00 – 34:D7:37:FF:FF:FF
Addresses in block: 16,777,216
Organization: IBG Industriebeteiligungsgesellschaft mbH &b Co. KG
Address: Pferdmengestr. 1 Cologne NRW DE 50968
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 (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "IBG Industriebeteiligungsgesellschaft mbH &b Co. KG"

Nearby in the registry

The prefixes assigned immediately before and after 34:D7:37:

FAQ

Which company owns MAC address prefix 34:D7:37?: MAC address prefix 34:D7:37 is registered to IBG Industriebeteiligungsgesellschaft mbH &b Co. KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:D7:37 has a network interface built by IBG Industriebeteiligungsgesellschaft mbH &b Co. KG.
What is the OUI 34:D7:37?: 34:D7:37 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IBG Industriebeteiligungsgesellschaft mbH &b Co. KG. It covers every address from 34:D7:37:00:00:00 to 34:D7:37:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-D7-37.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 34:D7:37:00:00:00 that is 34:D7:37 — 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 IBG Industriebeteiligungsgesellschaft mbH &b Co. KG located?: IBG Industriebeteiligungsgesellschaft mbH &b Co. KG is listed at Pferdmengestr. 1 Cologne NRW DE 50968 in the IEEE OUI registry entry for 34:D7:37. This is the address the organization registered with the IEEE, which may differ from its current operating address.