Which company owns MAC address prefix EC:EA:03?

MAC address prefix EC:EA:03 is registered to DARFON LIGHTING CORP in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:EA:03 has a network interface built by DARFON LIGHTING CORP.

What is the OUI EC:EA:03?

EC:EA:03 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DARFON LIGHTING CORP. It covers every address from EC:EA:03:00:00:00 to EC:EA:03:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-EA-03.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:EA:03:00:00:00 that is EC:EA:03 — 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 DARFON LIGHTING CORP located?

DARFON LIGHTING CORP is listed at 167, Shanying Road Gueishan Taoyuan TW 33341 in the IEEE OUI registry entry for EC:EA:03. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does DARFON LIGHTING CORP own?

DARFON LIGHTING CORP holds 2 OUI prefixes in the IEEE registry, of which EC:EA:03 is one. A device made by DARFON LIGHTING CORP could carry a MAC address from any of them.

DARFON LIGHTING CORP

MAC address prefix EC:EA:03 is registered to DARFON LIGHTING CORP in the IEEE OUI registry. Any device whose MAC address begins with EC:EA:03 has a network interface built by DARFON LIGHTING CORP. 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 EC:EA:03:00:00:00 to EC:EA:03:FF:FF:FF.

OUI prefix: EC:EA:03
Hyphen form: EC-EA-03
MAC range: EC:EA:03:00:00:00 – EC:EA:03:FF:FF:FF
Addresses in block: 16,777,216
Organization: DARFON LIGHTING CORP
Address: 167, Shanying Road Gueishan Taoyuan TW 33341
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.

Other prefixes from DARFON LIGHTING CORP

DARFON LIGHTING CORP holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:0F:F6

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 "DARFON LIGHTING CORP"
archived source →
2026-07-17Assigned to "DARFON LIGHTING CORP"

Nearby in the registry

The prefixes assigned immediately before and after EC:EA:03:

FAQ

Which company owns MAC address prefix EC:EA:03?: MAC address prefix EC:EA:03 is registered to DARFON LIGHTING CORP in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:EA:03 has a network interface built by DARFON LIGHTING CORP.
What is the OUI EC:EA:03?: EC:EA:03 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to DARFON LIGHTING CORP. It covers every address from EC:EA:03:00:00:00 to EC:EA:03:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-EA-03.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:EA:03:00:00:00 that is EC:EA:03 — 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 DARFON LIGHTING CORP located?: DARFON LIGHTING CORP is listed at 167, Shanying Road Gueishan Taoyuan TW 33341 in the IEEE OUI registry entry for EC:EA:03. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does DARFON LIGHTING CORP own?: DARFON LIGHTING CORP holds 2 OUI prefixes in the IEEE registry, of which EC:EA:03 is one. A device made by DARFON LIGHTING CORP could carry a MAC address from any of them.