Which company owns MAC address prefix 18:2D:F7?

MAC address prefix 18:2D:F7 is registered to JY COMPANY in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:2D:F7 has a network interface built by JY COMPANY.

What is the OUI 18:2D:F7?

18:2D:F7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to JY COMPANY. It covers every address from 18:2D:F7:00:00:00 to 18:2D:F7:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-2D-F7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 18:2D:F7:00:00:00 that is 18:2D:F7 — 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 JY COMPANY located?

JY COMPANY is listed at A-1811 Ho, SamboTechno Tower,122, Jomaru-ro 385 Beon-gil, Buchenon-si Gyenggi-do KR 14556 in the IEEE OUI registry entry for 18:2D:F7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

JY COMPANY

MAC address prefix 18:2D:F7 is registered to JY COMPANY in the IEEE OUI registry. Any device whose MAC address begins with 18:2D:F7 has a network interface built by JY COMPANY. 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 18:2D:F7:00:00:00 to 18:2D:F7:FF:FF:FF.

OUI prefix: 18:2D:F7
Hyphen form: 18-2D-F7
MAC range: 18:2D:F7:00:00:00 – 18:2D:F7:FF:FF:FF
Addresses in block: 16,777,216
Organization: JY COMPANY
Address: A-1811 Ho, SamboTechno Tower,122, Jomaru-ro 385 Beon-gil, Buchenon-si Gyenggi-do KR 14556
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.

2022-07-11Assigned to "JY COMPANY"
archived source →
2026-07-17Assigned to "JY COMPANY"

Nearby in the registry

The prefixes assigned immediately before and after 18:2D:F7:

FAQ

Which company owns MAC address prefix 18:2D:F7?: MAC address prefix 18:2D:F7 is registered to JY COMPANY in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:2D:F7 has a network interface built by JY COMPANY.
What is the OUI 18:2D:F7?: 18:2D:F7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to JY COMPANY. It covers every address from 18:2D:F7:00:00:00 to 18:2D:F7:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-2D-F7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 18:2D:F7:00:00:00 that is 18:2D:F7 — 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 JY COMPANY located?: JY COMPANY is listed at A-1811 Ho, SamboTechno Tower,122, Jomaru-ro 385 Beon-gil, Buchenon-si Gyenggi-do KR 14556 in the IEEE OUI registry entry for 18:2D:F7. This is the address the organization registered with the IEEE, which may differ from its current operating address.