Which company owns MAC address prefix 00:19:8E?

MAC address prefix 00:19:8E is registered to Demant A/S in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:19:8E has a network interface built by Demant A/S.

What is the OUI 00:19:8E?

00:19:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Demant A/S. It covers every address from 00:19:8E:00:00:00 to 00:19:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-19-8E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:19:8E:00:00:00 that is 00:19:8E — 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 Demant A/S located?

Demant A/S is listed at Kongebakken 9 Smørum DK 2765 in the IEEE OUI registry entry for 00:19:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Demant A/S own?

Demant A/S holds 2 OUI prefixes in the IEEE registry, of which 00:19:8E is one. A device made by Demant A/S could carry a MAC address from any of them.

Demant A/S

MAC address prefix 00:19:8E is registered to Demant A/S in the IEEE OUI registry. Any device whose MAC address begins with 00:19:8E has a network interface built by Demant A/S. 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 00:19:8E:00:00:00 to 00:19:8E:FF:FF:FF.

OUI prefix: 00:19:8E
Hyphen form: 00-19-8E
MAC range: 00:19:8E:00:00:00 – 00:19:8E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Demant A/S
Address: Kongebakken 9 Smørum DK 2765
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 Demant A/S

Demant A/S holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:F8:71

Assignment history (3)

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 "Oticon A/S"
archived source →
2022-07-11Renamed from "Oticon A/S" to "Demant A/S"
archived source →
2026-07-17Assigned to "Demant A/S"

Nearby in the registry

The prefixes assigned immediately before and after 00:19:8E:

FAQ

Which company owns MAC address prefix 00:19:8E?: MAC address prefix 00:19:8E is registered to Demant A/S in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:19:8E has a network interface built by Demant A/S.
What is the OUI 00:19:8E?: 00:19:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Demant A/S. It covers every address from 00:19:8E:00:00:00 to 00:19:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-19-8E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:19:8E:00:00:00 that is 00:19:8E — 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 Demant A/S located?: Demant A/S is listed at Kongebakken 9 Smørum DK 2765 in the IEEE OUI registry entry for 00:19:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Demant A/S own?: Demant A/S holds 2 OUI prefixes in the IEEE registry, of which 00:19:8E is one. A device made by Demant A/S could carry a MAC address from any of them.