Which company owns MAC address prefix A4:6E:A7?

MAC address prefix A4:6E:A7 is registered to DX ANTENNA CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:6E:A7 has a network interface built by DX ANTENNA CO.,LTD..

What is the OUI A4:6E:A7?

A4:6E:A7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DX ANTENNA CO.,LTD.. It covers every address from A4:6E:A7:00:00:00 to A4:6E:A7:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-6E-A7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A4:6E:A7:00:00:00 that is A4:6E:A7 — 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 DX ANTENNA CO.,LTD. located?

DX ANTENNA CO.,LTD. is listed at 2F KUDAN FIRST PLACE 4-1-28,KUDANKITA CHIYODA-KU TOKYO JP 102-0073 in the IEEE OUI registry entry for A4:6E:A7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

DX ANTENNA CO.,LTD.

MAC address prefix A4:6E:A7 is registered to DX ANTENNA CO.,LTD. in the IEEE OUI registry. Any device whose MAC address begins with A4:6E:A7 has a network interface built by DX ANTENNA CO.,LTD.. 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 A4:6E:A7:00:00:00 to A4:6E:A7:FF:FF:FF.

OUI prefix: A4:6E:A7
Hyphen form: A4-6E-A7
MAC range: A4:6E:A7:00:00:00 – A4:6E:A7:FF:FF:FF
Addresses in block: 16,777,216
Organization: DX ANTENNA CO.,LTD.
Address: 2F KUDAN FIRST PLACE 4-1-28,KUDANKITA CHIYODA-KU TOKYO JP 102-0073
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.

2024-11-20Assigned to "DX ANTENNA CO.,LTD."
archived source →
2026-07-17Assigned to "DX ANTENNA CO.,LTD."

Nearby in the registry

The prefixes assigned immediately before and after A4:6E:A7:

FAQ

Which company owns MAC address prefix A4:6E:A7?: MAC address prefix A4:6E:A7 is registered to DX ANTENNA CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:6E:A7 has a network interface built by DX ANTENNA CO.,LTD..
What is the OUI A4:6E:A7?: A4:6E:A7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DX ANTENNA CO.,LTD.. It covers every address from A4:6E:A7:00:00:00 to A4:6E:A7:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-6E-A7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A4:6E:A7:00:00:00 that is A4:6E:A7 — 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 DX ANTENNA CO.,LTD. located?: DX ANTENNA CO.,LTD. is listed at 2F KUDAN FIRST PLACE 4-1-28,KUDANKITA CHIYODA-KU TOKYO JP 102-0073 in the IEEE OUI registry entry for A4:6E:A7. This is the address the organization registered with the IEEE, which may differ from its current operating address.