Which company owns MAC address prefix 18:31:4F?

MAC address prefix 18:31:4F is registered to AIDIN ROBOTICS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:31:4F has a network interface built by AIDIN ROBOTICS.

What is the OUI 18:31:4F?

18:31:4F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to AIDIN ROBOTICS. It covers every address from 18:31:4F:00:00:00 to 18:31:4F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-31-4F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 18:31:4F:00:00:00 that is 18:31:4F — 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 AIDIN ROBOTICS located?

AIDIN ROBOTICS is listed at 12-20, SIMIN-DAERO 327BEON-GIL, ANYANG-SI GYEONGGI-DO KR 14055 in the IEEE OUI registry entry for 18:31:4F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

AIDIN ROBOTICS

MAC address prefix 18:31:4F is registered to AIDIN ROBOTICS in the IEEE OUI registry. Any device whose MAC address begins with 18:31:4F has a network interface built by AIDIN ROBOTICS. 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 18:31:4F:00:00:00 to 18:31:4F:FF:FF:FF.

OUI prefix: 18:31:4F
Hyphen form: 18-31-4F
MAC range: 18:31:4F:00:00:00 – 18:31:4F:FF:FF:FF
Addresses in block: 16,777,216
Organization: AIDIN ROBOTICS
Address: 12-20, SIMIN-DAERO 327BEON-GIL, ANYANG-SI GYEONGGI-DO KR 14055
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.

2024-02-15Assigned to "AIDIN ROBOTICS"
archived source →
2026-07-17Assigned to "AIDIN ROBOTICS"

Nearby in the registry

The prefixes assigned immediately before and after 18:31:4F:

FAQ

Which company owns MAC address prefix 18:31:4F?: MAC address prefix 18:31:4F is registered to AIDIN ROBOTICS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:31:4F has a network interface built by AIDIN ROBOTICS.
What is the OUI 18:31:4F?: 18:31:4F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to AIDIN ROBOTICS. It covers every address from 18:31:4F:00:00:00 to 18:31:4F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-31-4F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 18:31:4F:00:00:00 that is 18:31:4F — 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 AIDIN ROBOTICS located?: AIDIN ROBOTICS is listed at 12-20, SIMIN-DAERO 327BEON-GIL, ANYANG-SI GYEONGGI-DO KR 14055 in the IEEE OUI registry entry for 18:31:4F. This is the address the organization registered with the IEEE, which may differ from its current operating address.