Which company owns MAC address prefix CC:04:B4?

MAC address prefix CC:04:B4 is registered to Select Comfort in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:04:B4 has a network interface built by Select Comfort.

What is the OUI CC:04:B4?

CC:04:B4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Select Comfort. It covers every address from CC:04:B4:00:00:00 to CC:04:B4:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-04-B4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:04:B4:00:00:00 that is CC:04:B4 — 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 Select Comfort located?

Select Comfort is listed at 9800 59th Ave N Minneapolis MN US 55442 in the IEEE OUI registry entry for CC:04:B4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Select Comfort own?

Select Comfort holds 2 OUI prefixes in the IEEE registry, of which CC:04:B4 is one. A device made by Select Comfort could carry a MAC address from any of them.

Select Comfort

MAC address prefix CC:04:B4 is registered to Select Comfort in the IEEE OUI registry. Any device whose MAC address begins with CC:04:B4 has a network interface built by Select Comfort. 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 CC:04:B4:00:00:00 to CC:04:B4:FF:FF:FF.

OUI prefix: CC:04:B4
Hyphen form: CC-04-B4
MAC range: CC:04:B4:00:00:00 – CC:04:B4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Select Comfort
Address: 9800 59th Ave N Minneapolis MN US 55442
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 Select Comfort

Select Comfort holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

64:DB:A0

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 "Select Comfort"
archived source →
2026-07-17Assigned to "Select Comfort"

Nearby in the registry

The prefixes assigned immediately before and after CC:04:B4:

FAQ

Which company owns MAC address prefix CC:04:B4?: MAC address prefix CC:04:B4 is registered to Select Comfort in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:04:B4 has a network interface built by Select Comfort.
What is the OUI CC:04:B4?: CC:04:B4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Select Comfort. It covers every address from CC:04:B4:00:00:00 to CC:04:B4:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-04-B4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:04:B4:00:00:00 that is CC:04:B4 — 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 Select Comfort located?: Select Comfort is listed at 9800 59th Ave N Minneapolis MN US 55442 in the IEEE OUI registry entry for CC:04:B4. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Select Comfort own?: Select Comfort holds 2 OUI prefixes in the IEEE registry, of which CC:04:B4 is one. A device made by Select Comfort could carry a MAC address from any of them.