Which company owns MAC address prefix D8:8D:5C?

MAC address prefix D8:8D:5C is registered to Elentec in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:8D:5C has a network interface built by Elentec.

What is the OUI D8:8D:5C?

D8:8D:5C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elentec. It covers every address from D8:8D:5C:00:00:00 to D8:8D:5C:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-8D-5C.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:8D:5C:00:00:00 that is D8:8D:5C — 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 Elentec located?

Elentec is listed at Dongtangiheung-ro 64-3 Gyeonggi-do Hwaseong-si/Dongtan-myeon KR 445-812 in the IEEE OUI registry entry for D8:8D:5C. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Elentec own?

Elentec holds 3 OUI prefixes in the IEEE registry, of which D8:8D:5C is one. A device made by Elentec could carry a MAC address from any of them.

Elentec

MAC address prefix D8:8D:5C is registered to Elentec in the IEEE OUI registry. Any device whose MAC address begins with D8:8D:5C has a network interface built by Elentec. 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 D8:8D:5C:00:00:00 to D8:8D:5C:FF:FF:FF.

OUI prefix: D8:8D:5C
Hyphen form: D8-8D-5C
MAC range: D8:8D:5C:00:00:00 – D8:8D:5C:FF:FF:FF
Addresses in block: 16,777,216
Organization: Elentec
Address: Dongtangiheung-ro 64-3 Gyeonggi-do Hwaseong-si/Dongtan-myeon KR 445-812
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 Elentec

Elentec holds 3 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

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 "Elentec"
archived source →
2026-07-17Assigned to "Elentec"

Nearby in the registry

The prefixes assigned immediately before and after D8:8D:5C:

FAQ

Which company owns MAC address prefix D8:8D:5C?: MAC address prefix D8:8D:5C is registered to Elentec in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:8D:5C has a network interface built by Elentec.
What is the OUI D8:8D:5C?: D8:8D:5C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elentec. It covers every address from D8:8D:5C:00:00:00 to D8:8D:5C:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-8D-5C.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:8D:5C:00:00:00 that is D8:8D:5C — 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 Elentec located?: Elentec is listed at Dongtangiheung-ro 64-3 Gyeonggi-do Hwaseong-si/Dongtan-myeon KR 445-812 in the IEEE OUI registry entry for D8:8D:5C. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Elentec own?: Elentec holds 3 OUI prefixes in the IEEE registry, of which D8:8D:5C is one. A device made by Elentec could carry a MAC address from any of them.