Which company owns MAC address prefix 38:EC:11?

MAC address prefix 38:EC:11 is registered to Novatek Microelectronics Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:EC:11 has a network interface built by Novatek Microelectronics Corp..

What is the OUI 38:EC:11?

38:EC:11 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Novatek Microelectronics Corp.. It covers every address from 38:EC:11:00:00:00 to 38:EC:11:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-EC-11.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 38:EC:11:00:00:00 that is 38:EC:11 — 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 Novatek Microelectronics Corp. located?

Novatek Microelectronics Corp. is listed at No.1-2 Innovation Rd I., Hsinchu TW 300 in the IEEE OUI registry entry for 38:EC:11. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Novatek Microelectronics Corp.

MAC address prefix 38:EC:11 is registered to Novatek Microelectronics Corp. in the IEEE OUI registry. Any device whose MAC address begins with 38:EC:11 has a network interface built by Novatek Microelectronics 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 38:EC:11:00:00:00 to 38:EC:11:FF:FF:FF.

OUI prefix: 38:EC:11
Hyphen form: 38-EC-11
MAC range: 38:EC:11:00:00:00 – 38:EC:11:FF:FF:FF
Addresses in block: 16,777,216
Organization: Novatek Microelectronics Corp.
Address: No.1-2 Innovation Rd I., Hsinchu TW 300
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 "Novatek Microelectronics Corp."
archived source →
2026-07-17Assigned to "Novatek Microelectronics Corp."

Nearby in the registry

The prefixes assigned immediately before and after 38:EC:11:

FAQ

Which company owns MAC address prefix 38:EC:11?: MAC address prefix 38:EC:11 is registered to Novatek Microelectronics Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:EC:11 has a network interface built by Novatek Microelectronics Corp..
What is the OUI 38:EC:11?: 38:EC:11 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Novatek Microelectronics Corp.. It covers every address from 38:EC:11:00:00:00 to 38:EC:11:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-EC-11.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 38:EC:11:00:00:00 that is 38:EC:11 — 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 Novatek Microelectronics Corp. located?: Novatek Microelectronics Corp. is listed at No.1-2 Innovation Rd I., Hsinchu TW 300 in the IEEE OUI registry entry for 38:EC:11. This is the address the organization registered with the IEEE, which may differ from its current operating address.