Which company owns MAC address prefix 8C:E7:8C?

MAC address prefix 8C:E7:8C is registered to DK Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 8C:E7:8C has a network interface built by DK Networks.

What is the OUI 8C:E7:8C?

8C:E7:8C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DK Networks. It covers every address from 8C:E7:8C:00:00:00 to 8C:E7:8C:FF:FF:FF, or 16,777,216 addresses in total. It is also written 8C-E7-8C.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 8C:E7:8C:00:00:00 that is 8C:E7:8C — 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 DK Networks located?

DK Networks is listed at 20F-3, No.689, Zhong-Zheng Road, Zhong-He Dist. New Taipei City Taiwan TW 235 in the IEEE OUI registry entry for 8C:E7:8C. This is the address the organization registered with the IEEE, which may differ from its current operating address.

DK Networks

MAC address prefix 8C:E7:8C is registered to DK Networks in the IEEE OUI registry. Any device whose MAC address begins with 8C:E7:8C has a network interface built by DK Networks. 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 8C:E7:8C:00:00:00 to 8C:E7:8C:FF:FF:FF.

OUI prefix: 8C:E7:8C
Hyphen form: 8C-E7-8C
MAC range: 8C:E7:8C:00:00:00 – 8C:E7:8C:FF:FF:FF
Addresses in block: 16,777,216
Organization: DK Networks
Address: 20F-3, No.689, Zhong-Zheng Road, Zhong-He Dist. New Taipei City Taiwan TW 235
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 "DK Networks"
archived source →
2026-07-17Assigned to "DK Networks"

Nearby in the registry

The prefixes assigned immediately before and after 8C:E7:8C:

FAQ

Which company owns MAC address prefix 8C:E7:8C?: MAC address prefix 8C:E7:8C is registered to DK Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 8C:E7:8C has a network interface built by DK Networks.
What is the OUI 8C:E7:8C?: 8C:E7:8C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DK Networks. It covers every address from 8C:E7:8C:00:00:00 to 8C:E7:8C:FF:FF:FF, or 16,777,216 addresses in total. It is also written 8C-E7-8C.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 8C:E7:8C:00:00:00 that is 8C:E7:8C — 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 DK Networks located?: DK Networks is listed at 20F-3, No.689, Zhong-Zheng Road, Zhong-He Dist. New Taipei City Taiwan TW 235 in the IEEE OUI registry entry for 8C:E7:8C. This is the address the organization registered with the IEEE, which may differ from its current operating address.