Which company owns MAC address prefix 9C:9C:1D?

MAC address prefix 9C:9C:1D is registered to Starkey Labs Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 9C:9C:1D has a network interface built by Starkey Labs Inc..

What is the OUI 9C:9C:1D?

9C:9C:1D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Starkey Labs Inc.. It covers every address from 9C:9C:1D:00:00:00 to 9C:9C:1D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 9C-9C-1D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 9C:9C:1D:00:00:00 that is 9C:9C:1D — 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 Starkey Labs Inc. located?

Starkey Labs Inc. is listed at 6600 Washington Ave. S. Eden Prairie MN US 55344 in the IEEE OUI registry entry for 9C:9C:1D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Starkey Labs Inc. own?

Starkey Labs Inc. holds 3 OUI prefixes in the IEEE registry, of which 9C:9C:1D is one. A device made by Starkey Labs Inc. could carry a MAC address from any of them.

Starkey Labs Inc.

MAC address prefix 9C:9C:1D is registered to Starkey Labs Inc. in the IEEE OUI registry. Any device whose MAC address begins with 9C:9C:1D has a network interface built by Starkey Labs 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 9C:9C:1D:00:00:00 to 9C:9C:1D:FF:FF:FF.

OUI prefix: 9C:9C:1D
Hyphen form: 9C-9C-1D
MAC range: 9C:9C:1D:00:00:00 – 9C:9C:1D:FF:FF:FF
Addresses in block: 16,777,216
Organization: Starkey Labs Inc.
Address: 6600 Washington Ave. S. Eden Prairie MN US 55344
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.

Other prefixes from Starkey Labs Inc.

Starkey Labs Inc. holds 3 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

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 "Starkey Labs Inc."
archived source →
2026-07-17Assigned to "Starkey Labs Inc."

Nearby in the registry

The prefixes assigned immediately before and after 9C:9C:1D:

FAQ

Which company owns MAC address prefix 9C:9C:1D?: MAC address prefix 9C:9C:1D is registered to Starkey Labs Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 9C:9C:1D has a network interface built by Starkey Labs Inc..
What is the OUI 9C:9C:1D?: 9C:9C:1D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Starkey Labs Inc.. It covers every address from 9C:9C:1D:00:00:00 to 9C:9C:1D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 9C-9C-1D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 9C:9C:1D:00:00:00 that is 9C:9C:1D — 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 Starkey Labs Inc. located?: Starkey Labs Inc. is listed at 6600 Washington Ave. S. Eden Prairie MN US 55344 in the IEEE OUI registry entry for 9C:9C:1D. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Starkey Labs Inc. own?: Starkey Labs Inc. holds 3 OUI prefixes in the IEEE registry, of which 9C:9C:1D is one. A device made by Starkey Labs Inc. could carry a MAC address from any of them.