Which company owns MAC address prefix 6C:ED:51?

MAC address prefix 6C:ED:51 is registered to NEXCONTROL Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:ED:51 has a network interface built by NEXCONTROL Co.,Ltd.

What is the OUI 6C:ED:51?

6C:ED:51 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NEXCONTROL Co.,Ltd. It covers every address from 6C:ED:51:00:00:00 to 6C:ED:51:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-ED-51.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 6C:ED:51:00:00:00 that is 6C:ED:51 — 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 NEXCONTROL Co.,Ltd located?

NEXCONTROL Co.,Ltd is listed at (#303-1007, Ssangyong 3th) 397, Seokcheon-ro Bucheon-si Gyeonggi-do KR 14449 in the IEEE OUI registry entry for 6C:ED:51. This is the address the organization registered with the IEEE, which may differ from its current operating address.

NEXCONTROL Co.,Ltd

MAC address prefix 6C:ED:51 is registered to NEXCONTROL Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with 6C:ED:51 has a network interface built by NEXCONTROL 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 6C:ED:51:00:00:00 to 6C:ED:51:FF:FF:FF.

OUI prefix: 6C:ED:51
Hyphen form: 6C-ED-51
MAC range: 6C:ED:51:00:00:00 – 6C:ED:51:FF:FF:FF
Addresses in block: 16,777,216
Organization: NEXCONTROL Co.,Ltd
Address: (#303-1007, Ssangyong 3th) 397, Seokcheon-ro Bucheon-si Gyeonggi-do KR 14449
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.

2018-12-21Assigned to "NEXCONTROL Co.,Ltd"
archived source →
2026-07-17Assigned to "NEXCONTROL Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 6C:ED:51:

FAQ

Which company owns MAC address prefix 6C:ED:51?: MAC address prefix 6C:ED:51 is registered to NEXCONTROL Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:ED:51 has a network interface built by NEXCONTROL Co.,Ltd.
What is the OUI 6C:ED:51?: 6C:ED:51 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NEXCONTROL Co.,Ltd. It covers every address from 6C:ED:51:00:00:00 to 6C:ED:51:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-ED-51.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 6C:ED:51:00:00:00 that is 6C:ED:51 — 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 NEXCONTROL Co.,Ltd located?: NEXCONTROL Co.,Ltd is listed at (#303-1007, Ssangyong 3th) 397, Seokcheon-ro Bucheon-si Gyeonggi-do KR 14449 in the IEEE OUI registry entry for 6C:ED:51. This is the address the organization registered with the IEEE, which may differ from its current operating address.