Which company owns MAC address prefix 98:9B:CB?

MAC address prefix 98:9B:CB is registered to AVM Audiovisuelles Marketing und Computersysteme GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:9B:CB has a network interface built by AVM Audiovisuelles Marketing und Computersysteme GmbH.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 98:9B:CB:00:00:00 that is 98:9B:CB — 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.

How many MAC prefixes does AVM Audiovisuelles Marketing und Computersysteme GmbH own?

AVM Audiovisuelles Marketing und Computersysteme GmbH holds 32 OUI prefixes in the IEEE registry, of which 98:9B:CB is one. A device made by AVM Audiovisuelles Marketing und Computersysteme GmbH could carry a MAC address from any of them.

AVM Audiovisuelles Marketing und Computersysteme GmbH

MAC address prefix 98:9B:CB is registered to AVM Audiovisuelles Marketing und Computersysteme GmbH in the IEEE OUI registry. Any device whose MAC address begins with 98:9B:CB has a network interface built by AVM Audiovisuelles Marketing und Computersysteme 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 98:9B:CB:00:00:00 to 98:9B:CB:FF:FF:FF.

OUI prefix: 98:9B:CB
Hyphen form: 98-9B-CB
MAC range: 98:9B:CB:00:00:00 – 98:9B:CB:FF:FF:FF
Addresses in block: 16,777,216
Organization: AVM Audiovisuelles Marketing und Computersysteme GmbH
Address: Alt-Moabit 95 Berlin Berlin DE 10559
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.

Other prefixes from AVM Audiovisuelles Marketing und Computersysteme GmbH

AVM Audiovisuelles Marketing und Computersysteme GmbH holds 32 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

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 "AVM Audiovisuelles Marketing und Computersysteme GmbH"
archived source →
2026-07-17Assigned to "AVM Audiovisuelles Marketing und Computersysteme GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 98:9B:CB:

FAQ

Which company owns MAC address prefix 98:9B:CB?: MAC address prefix 98:9B:CB is registered to AVM Audiovisuelles Marketing und Computersysteme GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:9B:CB has a network interface built by AVM Audiovisuelles Marketing und Computersysteme GmbH.
What is the OUI 98:9B:CB?: 98:9B:CB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to AVM Audiovisuelles Marketing und Computersysteme GmbH. It covers every address from 98:9B:CB:00:00:00 to 98:9B:CB:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-9B-CB.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 98:9B:CB:00:00:00 that is 98:9B:CB — 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 AVM Audiovisuelles Marketing und Computersysteme GmbH located?: AVM Audiovisuelles Marketing und Computersysteme GmbH is listed at Alt-Moabit 95 Berlin Berlin DE 10559 in the IEEE OUI registry entry for 98:9B:CB. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does AVM Audiovisuelles Marketing und Computersysteme GmbH own?: AVM Audiovisuelles Marketing und Computersysteme GmbH holds 32 OUI prefixes in the IEEE registry, of which 98:9B:CB is one. A device made by AVM Audiovisuelles Marketing und Computersysteme GmbH could carry a MAC address from any of them.