Which company owns MAC address prefix F0:AC:A4?

MAC address prefix F0:AC:A4 is registered to HBC-radiomatic in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:AC:A4 has a network interface built by HBC-radiomatic.

What is the OUI F0:AC:A4?

F0:AC:A4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HBC-radiomatic. It covers every address from F0:AC:A4:00:00:00 to F0:AC:A4:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-AC-A4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F0:AC:A4:00:00:00 that is F0:AC:A4 — 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 HBC-radiomatic located?

HBC-radiomatic is listed at Haller Str. 45-53 Crailsheim Baden Wurttemberg DE 74564 in the IEEE OUI registry entry for F0:AC:A4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

HBC-radiomatic

MAC address prefix F0:AC:A4 is registered to HBC-radiomatic in the IEEE OUI registry. Any device whose MAC address begins with F0:AC:A4 has a network interface built by HBC-radiomatic. 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 F0:AC:A4:00:00:00 to F0:AC:A4:FF:FF:FF.

OUI prefix: F0:AC:A4
Hyphen form: F0-AC-A4
MAC range: F0:AC:A4:00:00:00 – F0:AC:A4:FF:FF:FF
Addresses in block: 16,777,216
Organization: HBC-radiomatic
Address: Haller Str. 45-53 Crailsheim Baden Wurttemberg DE 74564
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 "HBC-radiomatic"
archived source →
2026-07-17Assigned to "HBC-radiomatic"

Nearby in the registry

The prefixes assigned immediately before and after F0:AC:A4:

FAQ

Which company owns MAC address prefix F0:AC:A4?: MAC address prefix F0:AC:A4 is registered to HBC-radiomatic in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:AC:A4 has a network interface built by HBC-radiomatic.
What is the OUI F0:AC:A4?: F0:AC:A4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HBC-radiomatic. It covers every address from F0:AC:A4:00:00:00 to F0:AC:A4:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-AC-A4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F0:AC:A4:00:00:00 that is F0:AC:A4 — 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 HBC-radiomatic located?: HBC-radiomatic is listed at Haller Str. 45-53 Crailsheim Baden Wurttemberg DE 74564 in the IEEE OUI registry entry for F0:AC:A4. This is the address the organization registered with the IEEE, which may differ from its current operating address.