Which company owns MAC address prefix 20:F5:97?

MAC address prefix 20:F5:97 is registered to Maasiv, LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:F5:97 has a network interface built by Maasiv, LLC.

What is the OUI 20:F5:97?

20:F5:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Maasiv, LLC. It covers every address from 20:F5:97:00:00:00 to 20:F5:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-F5-97.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 20:F5:97:00:00:00 that is 20:F5:97 — 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 Maasiv, LLC located?

Maasiv, LLC is listed at 4939 W. Ray Road, Suite 4-200 Chandler AZ US 85226 in the IEEE OUI registry entry for 20:F5:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Maasiv, LLC

MAC address prefix 20:F5:97 is registered to Maasiv, LLC in the IEEE OUI registry. Any device whose MAC address begins with 20:F5:97 has a network interface built by Maasiv, LLC. 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 20:F5:97:00:00:00 to 20:F5:97:FF:FF:FF.

OUI prefix: 20:F5:97
Hyphen form: 20-F5-97
MAC range: 20:F5:97:00:00:00 – 20:F5:97:FF:FF:FF
Addresses in block: 16,777,216
Organization: Maasiv, LLC
Address: 4939 W. Ray Road, Suite 4-200 Chandler AZ US 85226
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.

2023-07-11Assigned to "Maasiv, LLC"
archived source →
2026-07-17Assigned to "Maasiv, LLC"

Nearby in the registry

The prefixes assigned immediately before and after 20:F5:97:

FAQ

Which company owns MAC address prefix 20:F5:97?: MAC address prefix 20:F5:97 is registered to Maasiv, LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:F5:97 has a network interface built by Maasiv, LLC.
What is the OUI 20:F5:97?: 20:F5:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Maasiv, LLC. It covers every address from 20:F5:97:00:00:00 to 20:F5:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-F5-97.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 20:F5:97:00:00:00 that is 20:F5:97 — 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 Maasiv, LLC located?: Maasiv, LLC is listed at 4939 W. Ray Road, Suite 4-200 Chandler AZ US 85226 in the IEEE OUI registry entry for 20:F5:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.