Which company owns MAC address prefix 60:B1:85?

MAC address prefix 60:B1:85 is registered to ATH system in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:B1:85 has a network interface built by ATH system.

What is the OUI 60:B1:85?

60:B1:85 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ATH system. It covers every address from 60:B1:85:00:00:00 to 60:B1:85:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-B1-85.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 60:B1:85:00:00:00 that is 60:B1:85 — 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 ATH system located?

ATH system is listed at Osady Lezaku 498 Chrast CZ 53851 in the IEEE OUI registry entry for 60:B1:85. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ATH system

MAC address prefix 60:B1:85 is registered to ATH system in the IEEE OUI registry. Any device whose MAC address begins with 60:B1:85 has a network interface built by ATH system. 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 60:B1:85:00:00:00 to 60:B1:85:FF:FF:FF.

OUI prefix: 60:B1:85
Hyphen form: 60-B1-85
MAC range: 60:B1:85:00:00:00 – 60:B1:85:FF:FF:FF
Addresses in block: 16,777,216
Organization: ATH system
Address: Osady Lezaku 498 Chrast CZ 53851
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 "ATH system"
archived source →
2026-07-17Assigned to "ATH system"

Nearby in the registry

The prefixes assigned immediately before and after 60:B1:85:

FAQ

Which company owns MAC address prefix 60:B1:85?: MAC address prefix 60:B1:85 is registered to ATH system in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:B1:85 has a network interface built by ATH system.
What is the OUI 60:B1:85?: 60:B1:85 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ATH system. It covers every address from 60:B1:85:00:00:00 to 60:B1:85:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-B1-85.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 60:B1:85:00:00:00 that is 60:B1:85 — 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 ATH system located?: ATH system is listed at Osady Lezaku 498 Chrast CZ 53851 in the IEEE OUI registry entry for 60:B1:85. This is the address the organization registered with the IEEE, which may differ from its current operating address.