Which company owns MAC address prefix C0:EA:E4?

MAC address prefix C0:EA:E4 is registered to Sonicwall in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:EA:E4 has a network interface built by Sonicwall.

What is the OUI C0:EA:E4?

C0:EA:E4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sonicwall. It covers every address from C0:EA:E4:00:00:00 to C0:EA:E4:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-EA-E4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C0:EA:E4:00:00:00 that is C0:EA:E4 — 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 Sonicwall located?

Sonicwall is listed at 2001 Logic Drive San Jose CA US 95124-3452 in the IEEE OUI registry entry for C0:EA:E4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Sonicwall own?

Sonicwall holds 3 OUI prefixes in the IEEE registry, of which C0:EA:E4 is one. A device made by Sonicwall could carry a MAC address from any of them.

Sonicwall

MAC address prefix C0:EA:E4 is registered to Sonicwall in the IEEE OUI registry. Any device whose MAC address begins with C0:EA:E4 has a network interface built by Sonicwall. 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 C0:EA:E4:00:00:00 to C0:EA:E4:FF:FF:FF.

OUI prefix: C0:EA:E4
Hyphen form: C0-EA-E4
MAC range: C0:EA:E4:00:00:00 – C0:EA:E4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Sonicwall
Address: 2001 Logic Drive San Jose CA US 95124-3452
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 Sonicwall

Sonicwall 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 "Sonicwall"
archived source →
2026-07-17Assigned to "Sonicwall"

Nearby in the registry

The prefixes assigned immediately before and after C0:EA:E4:

FAQ

Which company owns MAC address prefix C0:EA:E4?: MAC address prefix C0:EA:E4 is registered to Sonicwall in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:EA:E4 has a network interface built by Sonicwall.
What is the OUI C0:EA:E4?: C0:EA:E4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sonicwall. It covers every address from C0:EA:E4:00:00:00 to C0:EA:E4:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-EA-E4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C0:EA:E4:00:00:00 that is C0:EA:E4 — 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 Sonicwall located?: Sonicwall is listed at 2001 Logic Drive San Jose CA US 95124-3452 in the IEEE OUI registry entry for C0:EA:E4. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Sonicwall own?: Sonicwall holds 3 OUI prefixes in the IEEE registry, of which C0:EA:E4 is one. A device made by Sonicwall could carry a MAC address from any of them.