Which company owns MAC address prefix AC:CA:8E?

MAC address prefix AC:CA:8E is registered to ODA Technologies in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:CA:8E has a network interface built by ODA Technologies.

What is the OUI AC:CA:8E?

AC:CA:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ODA Technologies. It covers every address from AC:CA:8E:00:00:00 to AC:CA:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-CA-8E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in AC:CA:8E:00:00:00 that is AC:CA:8E — 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 ODA Technologies located?

ODA Technologies is listed at 607-A Woorim Lions Valley, #425 Incheon KR KSXX0009 in the IEEE OUI registry entry for AC:CA:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ODA Technologies

MAC address prefix AC:CA:8E is registered to ODA Technologies in the IEEE OUI registry. Any device whose MAC address begins with AC:CA:8E has a network interface built by ODA Technologies. 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 AC:CA:8E:00:00:00 to AC:CA:8E:FF:FF:FF.

OUI prefix: AC:CA:8E
Hyphen form: AC-CA-8E
MAC range: AC:CA:8E:00:00:00 – AC:CA:8E:FF:FF:FF
Addresses in block: 16,777,216
Organization: ODA Technologies
Address: 607-A Woorim Lions Valley, #425 Incheon KR KSXX0009
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 "ODA Technologies"
archived source →
2026-07-17Assigned to "ODA Technologies"

Nearby in the registry

The prefixes assigned immediately before and after AC:CA:8E:

FAQ

Which company owns MAC address prefix AC:CA:8E?: MAC address prefix AC:CA:8E is registered to ODA Technologies in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:CA:8E has a network interface built by ODA Technologies.
What is the OUI AC:CA:8E?: AC:CA:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ODA Technologies. It covers every address from AC:CA:8E:00:00:00 to AC:CA:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-CA-8E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in AC:CA:8E:00:00:00 that is AC:CA:8E — 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 ODA Technologies located?: ODA Technologies is listed at 607-A Woorim Lions Valley, #425 Incheon KR KSXX0009 in the IEEE OUI registry entry for AC:CA:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.