Which company owns MAC address prefix BC:A9:D6?

MAC address prefix BC:A9:D6 is registered to Cyber-Rain, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with BC:A9:D6 has a network interface built by Cyber-Rain, Inc..

What is the OUI BC:A9:D6?

BC:A9:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cyber-Rain, Inc.. It covers every address from BC:A9:D6:00:00:00 to BC:A9:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written BC-A9-D6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in BC:A9:D6:00:00:00 that is BC:A9:D6 — 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 Cyber-Rain, Inc. located?

Cyber-Rain, Inc. is listed at 5272 Evanwood Avenue Oak Park California US 91377-4809 in the IEEE OUI registry entry for BC:A9:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Cyber-Rain, Inc.

MAC address prefix BC:A9:D6 is registered to Cyber-Rain, Inc. in the IEEE OUI registry. Any device whose MAC address begins with BC:A9:D6 has a network interface built by Cyber-Rain, 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 BC:A9:D6:00:00:00 to BC:A9:D6:FF:FF:FF.

OUI prefix: BC:A9:D6
Hyphen form: BC-A9-D6
MAC range: BC:A9:D6:00:00:00 – BC:A9:D6:FF:FF:FF
Addresses in block: 16,777,216
Organization: Cyber-Rain, Inc.
Address: 5272 Evanwood Avenue Oak Park California US 91377-4809
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.

2016-07-29Assigned to "Cyber-Rain, Inc."
archived source →
2026-07-17Assigned to "Cyber-Rain, Inc."

Nearby in the registry

The prefixes assigned immediately before and after BC:A9:D6:

FAQ

Which company owns MAC address prefix BC:A9:D6?: MAC address prefix BC:A9:D6 is registered to Cyber-Rain, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with BC:A9:D6 has a network interface built by Cyber-Rain, Inc..
What is the OUI BC:A9:D6?: BC:A9:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cyber-Rain, Inc.. It covers every address from BC:A9:D6:00:00:00 to BC:A9:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written BC-A9-D6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in BC:A9:D6:00:00:00 that is BC:A9:D6 — 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 Cyber-Rain, Inc. located?: Cyber-Rain, Inc. is listed at 5272 Evanwood Avenue Oak Park California US 91377-4809 in the IEEE OUI registry entry for BC:A9:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.