Which company owns MAC address prefix 88:5E:BD?

MAC address prefix 88:5E:BD is registered to NCKOREA Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:5E:BD has a network interface built by NCKOREA Co.,Ltd..

What is the OUI 88:5E:BD?

88:5E:BD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NCKOREA Co.,Ltd.. It covers every address from 88:5E:BD:00:00:00 to 88:5E:BD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-5E-BD.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 88:5E:BD:00:00:00 that is 88:5E:BD — 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 NCKOREA Co.,Ltd. located?

NCKOREA Co.,Ltd. is listed at 121, Hyeoksinsandan 7-gil, Wanggok-myeon, Naju-si, Jeollanam-do, Republic of Korea Naju-si Jeollanam-do KR 58296 in the IEEE OUI registry entry for 88:5E:BD. This is the address the organization registered with the IEEE, which may differ from its current operating address.

NCKOREA Co.,Ltd.

MAC address prefix 88:5E:BD is registered to NCKOREA Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 88:5E:BD has a network interface built by NCKOREA 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 88:5E:BD:00:00:00 to 88:5E:BD:FF:FF:FF.

OUI prefix: 88:5E:BD
Hyphen form: 88-5E-BD
MAC range: 88:5E:BD:00:00:00 – 88:5E:BD:FF:FF:FF
Addresses in block: 16,777,216
Organization: NCKOREA Co.,Ltd.
Address: 121, Hyeoksinsandan 7-gil, Wanggok-myeon, Naju-si, Jeollanam-do, Republic of Korea Naju-si Jeollanam-do KR 58296
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.

2023-07-11Assigned to "NCKOREA Co.,Ltd."
archived source →
2026-07-17Assigned to "NCKOREA Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 88:5E:BD:

FAQ

Which company owns MAC address prefix 88:5E:BD?: MAC address prefix 88:5E:BD is registered to NCKOREA Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:5E:BD has a network interface built by NCKOREA Co.,Ltd..
What is the OUI 88:5E:BD?: 88:5E:BD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NCKOREA Co.,Ltd.. It covers every address from 88:5E:BD:00:00:00 to 88:5E:BD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-5E-BD.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 88:5E:BD:00:00:00 that is 88:5E:BD — 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 NCKOREA Co.,Ltd. located?: NCKOREA Co.,Ltd. is listed at 121, Hyeoksinsandan 7-gil, Wanggok-myeon, Naju-si, Jeollanam-do, Republic of Korea Naju-si Jeollanam-do KR 58296 in the IEEE OUI registry entry for 88:5E:BD. This is the address the organization registered with the IEEE, which may differ from its current operating address.