Which company owns MAC address prefix CC:EA:1C?

MAC address prefix CC:EA:1C is registered to DCONWORKS Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:EA:1C has a network interface built by DCONWORKS Co., Ltd.

What is the OUI CC:EA:1C?

CC:EA:1C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DCONWORKS Co., Ltd. It covers every address from CC:EA:1C:00:00:00 to CC:EA:1C:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-EA-1C.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:EA:1C:00:00:00 that is CC:EA:1C — 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 DCONWORKS Co., Ltd located?

DCONWORKS Co., Ltd is listed at 182-13 Daerung Post Tower 2nd 5F Seoul KR 152-847 in the IEEE OUI registry entry for CC:EA:1C. This is the address the organization registered with the IEEE, which may differ from its current operating address.

DCONWORKS Co., Ltd

MAC address prefix CC:EA:1C is registered to DCONWORKS Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with CC:EA:1C has a network interface built by DCONWORKS 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 CC:EA:1C:00:00:00 to CC:EA:1C:FF:FF:FF.

OUI prefix: CC:EA:1C
Hyphen form: CC-EA-1C
MAC range: CC:EA:1C:00:00:00 – CC:EA:1C:FF:FF:FF
Addresses in block: 16,777,216
Organization: DCONWORKS Co., Ltd
Address: 182-13 Daerung Post Tower 2nd 5F Seoul KR 152-847
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.

2016-07-29Assigned to "DCONWORKS Co., Ltd"
archived source →
2026-07-17Assigned to "DCONWORKS Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after CC:EA:1C:

FAQ

Which company owns MAC address prefix CC:EA:1C?: MAC address prefix CC:EA:1C is registered to DCONWORKS Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:EA:1C has a network interface built by DCONWORKS Co., Ltd.
What is the OUI CC:EA:1C?: CC:EA:1C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DCONWORKS Co., Ltd. It covers every address from CC:EA:1C:00:00:00 to CC:EA:1C:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-EA-1C.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:EA:1C:00:00:00 that is CC:EA:1C — 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 DCONWORKS Co., Ltd located?: DCONWORKS Co., Ltd is listed at 182-13 Daerung Post Tower 2nd 5F Seoul KR 152-847 in the IEEE OUI registry entry for CC:EA:1C. This is the address the organization registered with the IEEE, which may differ from its current operating address.