Which company owns MAC address prefix 18:20:A6?

MAC address prefix 18:20:A6 is registered to Sage Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:20:A6 has a network interface built by Sage Co., Ltd..

What is the OUI 18:20:A6?

18:20:A6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sage Co., Ltd.. It covers every address from 18:20:A6:00:00:00 to 18:20:A6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-20-A6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 18:20:A6:00:00:00 that is 18:20:A6 — 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 Sage Co., Ltd. located?

Sage Co., Ltd. is listed at 2-24 Sumiyoshicho, Naka-ku Yokohama-shi Kanagawa JP 231-0013 in the IEEE OUI registry entry for 18:20:A6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Sage Co., Ltd.

MAC address prefix 18:20:A6 is registered to Sage Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 18:20:A6 has a network interface built by Sage 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 18:20:A6:00:00:00 to 18:20:A6:FF:FF:FF.

OUI prefix: 18:20:A6
Hyphen form: 18-20-A6
MAC range: 18:20:A6:00:00:00 – 18:20:A6:FF:FF:FF
Addresses in block: 16,777,216
Organization: Sage Co., Ltd.
Address: 2-24 Sumiyoshicho, Naka-ku Yokohama-shi Kanagawa JP 231-0013
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 "Sage Co., Ltd."
archived source →
2026-07-17Assigned to "Sage Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 18:20:A6:

FAQ

Which company owns MAC address prefix 18:20:A6?: MAC address prefix 18:20:A6 is registered to Sage Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:20:A6 has a network interface built by Sage Co., Ltd..
What is the OUI 18:20:A6?: 18:20:A6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sage Co., Ltd.. It covers every address from 18:20:A6:00:00:00 to 18:20:A6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-20-A6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 18:20:A6:00:00:00 that is 18:20:A6 — 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 Sage Co., Ltd. located?: Sage Co., Ltd. is listed at 2-24 Sumiyoshicho, Naka-ku Yokohama-shi Kanagawa JP 231-0013 in the IEEE OUI registry entry for 18:20:A6. This is the address the organization registered with the IEEE, which may differ from its current operating address.