Which company owns MAC address prefix 60:81:F9?

MAC address prefix 60:81:F9 is registered to Helium Systems, Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:81:F9 has a network interface built by Helium Systems, Inc.

What is the OUI 60:81:F9?

60:81:F9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Helium Systems, Inc. It covers every address from 60:81:F9:00:00:00 to 60:81:F9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-81-F9.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 60:81:F9:00:00:00 that is 60:81:F9 — 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 Helium Systems, Inc located?

Helium Systems, Inc is listed at 717 Market Street San Francisco CA US 94102 in the IEEE OUI registry entry for 60:81:F9. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Helium Systems, Inc

MAC address prefix 60:81:F9 is registered to Helium Systems, Inc in the IEEE OUI registry. Any device whose MAC address begins with 60:81:F9 has a network interface built by Helium Systems, Inc. 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 60:81:F9:00:00:00 to 60:81:F9:FF:FF:FF.

OUI prefix: 60:81:F9
Hyphen form: 60-81-F9
MAC range: 60:81:F9:00:00:00 – 60:81:F9:FF:FF:FF
Addresses in block: 16,777,216
Organization: Helium Systems, Inc
Address: 717 Market Street San Francisco CA US 94102
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 "Helium Systems, Inc"
archived source →
2026-07-17Assigned to "Helium Systems, Inc"

Nearby in the registry

The prefixes assigned immediately before and after 60:81:F9:

FAQ

Which company owns MAC address prefix 60:81:F9?: MAC address prefix 60:81:F9 is registered to Helium Systems, Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:81:F9 has a network interface built by Helium Systems, Inc.
What is the OUI 60:81:F9?: 60:81:F9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Helium Systems, Inc. It covers every address from 60:81:F9:00:00:00 to 60:81:F9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-81-F9.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 60:81:F9:00:00:00 that is 60:81:F9 — 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 Helium Systems, Inc located?: Helium Systems, Inc is listed at 717 Market Street San Francisco CA US 94102 in the IEEE OUI registry entry for 60:81:F9. This is the address the organization registered with the IEEE, which may differ from its current operating address.