Which company owns MAC address prefix 6C:A0:AF?

MAC address prefix 6C:A0:AF is registered to CM PARTNER INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:A0:AF has a network interface built by CM PARTNER INC..

What is the OUI 6C:A0:AF?

6C:A0:AF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CM PARTNER INC.. It covers every address from 6C:A0:AF:00:00:00 to 6C:A0:AF:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-A0-AF.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 6C:A0:AF:00:00:00 that is 6C:A0:AF — 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 CM PARTNER INC. located?

CM PARTNER INC. is listed at 479-11 Gyeonggidong-ro Namsa-eup Cheoin-gu Yongin-si Gyeonggi-do KR 17121 in the IEEE OUI registry entry for 6C:A0:AF. This is the address the organization registered with the IEEE, which may differ from its current operating address.

CM PARTNER INC.

MAC address prefix 6C:A0:AF is registered to CM PARTNER INC. in the IEEE OUI registry. Any device whose MAC address begins with 6C:A0:AF has a network interface built by CM PARTNER 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 6C:A0:AF:00:00:00 to 6C:A0:AF:FF:FF:FF.

OUI prefix: 6C:A0:AF
Hyphen form: 6C-A0-AF
MAC range: 6C:A0:AF:00:00:00 – 6C:A0:AF:FF:FF:FF
Addresses in block: 16,777,216
Organization: CM PARTNER INC.
Address: 479-11 Gyeonggidong-ro Namsa-eup Cheoin-gu Yongin-si Gyeonggi-do KR 17121
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 (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "CM PARTNER INC."

Nearby in the registry

The prefixes assigned immediately before and after 6C:A0:AF:

FAQ

Which company owns MAC address prefix 6C:A0:AF?: MAC address prefix 6C:A0:AF is registered to CM PARTNER INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:A0:AF has a network interface built by CM PARTNER INC..
What is the OUI 6C:A0:AF?: 6C:A0:AF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CM PARTNER INC.. It covers every address from 6C:A0:AF:00:00:00 to 6C:A0:AF:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-A0-AF.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 6C:A0:AF:00:00:00 that is 6C:A0:AF — 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 CM PARTNER INC. located?: CM PARTNER INC. is listed at 479-11 Gyeonggidong-ro Namsa-eup Cheoin-gu Yongin-si Gyeonggi-do KR 17121 in the IEEE OUI registry entry for 6C:A0:AF. This is the address the organization registered with the IEEE, which may differ from its current operating address.