Which company owns MAC address prefix D8:EE:78?

MAC address prefix D8:EE:78 is registered to Moog Protokraft in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:EE:78 has a network interface built by Moog Protokraft.

What is the OUI D8:EE:78?

D8:EE:78 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Moog Protokraft. It covers every address from D8:EE:78:00:00:00 to D8:EE:78:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-EE-78.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:EE:78:00:00:00 that is D8:EE:78 — 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 Moog Protokraft located?

Moog Protokraft is listed at 4545 W Stone Dr Bldg 135 Kingsport TN US 37660 in the IEEE OUI registry entry for D8:EE:78. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Moog Protokraft

MAC address prefix D8:EE:78 is registered to Moog Protokraft in the IEEE OUI registry. Any device whose MAC address begins with D8:EE:78 has a network interface built by Moog Protokraft. 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:EE:78:00:00:00 to D8:EE:78:FF:FF:FF.

OUI prefix: D8:EE:78
Hyphen form: D8-EE-78
MAC range: D8:EE:78:00:00:00 – D8:EE:78:FF:FF:FF
Addresses in block: 16,777,216
Organization: Moog Protokraft
Address: 4545 W Stone Dr Bldg 135 Kingsport TN US 37660
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 "Moog Protokraft"
archived source →
2026-07-17Assigned to "Moog Protokraft"

Nearby in the registry

The prefixes assigned immediately before and after D8:EE:78:

FAQ

Which company owns MAC address prefix D8:EE:78?: MAC address prefix D8:EE:78 is registered to Moog Protokraft in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:EE:78 has a network interface built by Moog Protokraft.
What is the OUI D8:EE:78?: D8:EE:78 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Moog Protokraft. It covers every address from D8:EE:78:00:00:00 to D8:EE:78:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-EE-78.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:EE:78:00:00:00 that is D8:EE:78 — 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 Moog Protokraft located?: Moog Protokraft is listed at 4545 W Stone Dr Bldg 135 Kingsport TN US 37660 in the IEEE OUI registry entry for D8:EE:78. This is the address the organization registered with the IEEE, which may differ from its current operating address.