Which company owns MAC address prefix 84:AF:1F?

MAC address prefix 84:AF:1F is registered to GopherTec Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:AF:1F has a network interface built by GopherTec Inc..

What is the OUI 84:AF:1F?

84:AF:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GopherTec Inc.. It covers every address from 84:AF:1F:00:00:00 to 84:AF:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-AF-1F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 84:AF:1F:00:00:00 that is 84:AF:1F — 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 GopherTec Inc. located?

GopherTec Inc. is listed at 3-20-8 Noda Kita-Ku Okayama JP 700-0971 in the IEEE OUI registry entry for 84:AF:1F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does GopherTec Inc. own?

GopherTec Inc. holds 2 OUI prefixes in the IEEE registry, of which 84:AF:1F is one. A device made by GopherTec Inc. could carry a MAC address from any of them.

GopherTec Inc.

MAC address prefix 84:AF:1F is registered to GopherTec Inc. in the IEEE OUI registry. Any device whose MAC address begins with 84:AF:1F has a network interface built by GopherTec 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 84:AF:1F:00:00:00 to 84:AF:1F:FF:FF:FF.

OUI prefix: 84:AF:1F
Hyphen form: 84-AF-1F
MAC range: 84:AF:1F:00:00:00 – 84:AF:1F:FF:FF:FF
Addresses in block: 16,777,216
Organization: GopherTec Inc.
Address: 3-20-8 Noda Kita-Ku Okayama JP 700-0971
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 GopherTec Inc.

GopherTec Inc. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:0F:EC

Assignment history (3)

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 "Beat System Service Co,. Ltd."
archived source →
2025-02-27Renamed from "Beat System Service Co,. Ltd." to "GopherTec Inc."
archived source →
2026-07-17Assigned to "GopherTec Inc."

Nearby in the registry

The prefixes assigned immediately before and after 84:AF:1F:

FAQ

Which company owns MAC address prefix 84:AF:1F?: MAC address prefix 84:AF:1F is registered to GopherTec Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:AF:1F has a network interface built by GopherTec Inc..
What is the OUI 84:AF:1F?: 84:AF:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GopherTec Inc.. It covers every address from 84:AF:1F:00:00:00 to 84:AF:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-AF-1F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 84:AF:1F:00:00:00 that is 84:AF:1F — 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 GopherTec Inc. located?: GopherTec Inc. is listed at 3-20-8 Noda Kita-Ku Okayama JP 700-0971 in the IEEE OUI registry entry for 84:AF:1F. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does GopherTec Inc. own?: GopherTec Inc. holds 2 OUI prefixes in the IEEE registry, of which 84:AF:1F is one. A device made by GopherTec Inc. could carry a MAC address from any of them.