Which company owns MAC address prefix C8:B1:EE?

MAC address prefix C8:B1:EE is registered to Qorvo in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:B1:EE has a network interface built by Qorvo.

What is the OUI C8:B1:EE?

C8:B1:EE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Qorvo. It covers every address from C8:B1:EE:00:00:00 to C8:B1:EE:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-B1-EE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:B1:EE:00:00:00 that is C8:B1:EE — 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 Qorvo located?

Qorvo is listed at 1 Changi Business Park Crescent, Avenue 1, #04-01 NA SG 486058 in the IEEE OUI registry entry for C8:B1:EE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Qorvo

MAC address prefix C8:B1:EE is registered to Qorvo in the IEEE OUI registry. Any device whose MAC address begins with C8:B1:EE has a network interface built by Qorvo. 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 C8:B1:EE:00:00:00 to C8:B1:EE:FF:FF:FF.

OUI prefix: C8:B1:EE
Hyphen form: C8-B1-EE
MAC range: C8:B1:EE:00:00:00 – C8:B1:EE:FF:FF:FF
Addresses in block: 16,777,216
Organization: Qorvo
Address: 1 Changi Business Park Crescent, Avenue 1, #04-01 NA SG 486058
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.

2018-12-21Assigned to "Qorvo"
archived source →
2026-07-17Assigned to "Qorvo"

Nearby in the registry

The prefixes assigned immediately before and after C8:B1:EE:

FAQ

Which company owns MAC address prefix C8:B1:EE?: MAC address prefix C8:B1:EE is registered to Qorvo in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:B1:EE has a network interface built by Qorvo.
What is the OUI C8:B1:EE?: C8:B1:EE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Qorvo. It covers every address from C8:B1:EE:00:00:00 to C8:B1:EE:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-B1-EE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:B1:EE:00:00:00 that is C8:B1:EE — 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 Qorvo located?: Qorvo is listed at 1 Changi Business Park Crescent, Avenue 1, #04-01 NA SG 486058 in the IEEE OUI registry entry for C8:B1:EE. This is the address the organization registered with the IEEE, which may differ from its current operating address.