Which company owns MAC address prefix 70:BD:D2?

MAC address prefix 70:BD:D2 is registered to Adva Network Security GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:BD:D2 has a network interface built by Adva Network Security GmbH.

What is the OUI 70:BD:D2?

70:BD:D2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Adva Network Security GmbH. It covers every address from 70:BD:D2:00:00:00 to 70:BD:D2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-BD-D2.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 70:BD:D2:00:00:00 that is 70:BD:D2 — 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 Adva Network Security GmbH located?

Adva Network Security GmbH is listed at Justus-von-Liebig-Strasse 7 Berlin DE 12489 in the IEEE OUI registry entry for 70:BD:D2. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Adva Network Security GmbH

MAC address prefix 70:BD:D2 is registered to Adva Network Security GmbH in the IEEE OUI registry. Any device whose MAC address begins with 70:BD:D2 has a network interface built by Adva Network Security 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 70:BD:D2:00:00:00 to 70:BD:D2:FF:FF:FF.

OUI prefix: 70:BD:D2
Hyphen form: 70-BD-D2
MAC range: 70:BD:D2:00:00:00 – 70:BD:D2:FF:FF:FF
Addresses in block: 16,777,216
Organization: Adva Network Security GmbH
Address: Justus-von-Liebig-Strasse 7 Berlin DE 12489
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.

2024-02-15Assigned to "Adva Network Security GmbH"
archived source →
2026-07-17Assigned to "Adva Network Security GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 70:BD:D2:

FAQ

Which company owns MAC address prefix 70:BD:D2?: MAC address prefix 70:BD:D2 is registered to Adva Network Security GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:BD:D2 has a network interface built by Adva Network Security GmbH.
What is the OUI 70:BD:D2?: 70:BD:D2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Adva Network Security GmbH. It covers every address from 70:BD:D2:00:00:00 to 70:BD:D2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-BD-D2.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 70:BD:D2:00:00:00 that is 70:BD:D2 — 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 Adva Network Security GmbH located?: Adva Network Security GmbH is listed at Justus-von-Liebig-Strasse 7 Berlin DE 12489 in the IEEE OUI registry entry for 70:BD:D2. This is the address the organization registered with the IEEE, which may differ from its current operating address.