Which company owns MAC address prefix DC:EE:14?

MAC address prefix DC:EE:14 is registered to ADT Technology in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:EE:14 has a network interface built by ADT Technology.

What is the OUI DC:EE:14?

DC:EE:14 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ADT Technology. It covers every address from DC:EE:14:00:00:00 to DC:EE:14:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-EE-14.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:EE:14:00:00:00 that is DC:EE:14 — 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 ADT Technology located?

ADT Technology is listed at Room 325, 3rd Floor, Building F, Xinmao Science and Technology Park, Huayuan Industrial Zone Tianjin Tianjin CN 300384 in the IEEE OUI registry entry for DC:EE:14. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ADT Technology

MAC address prefix DC:EE:14 is registered to ADT Technology in the IEEE OUI registry. Any device whose MAC address begins with DC:EE:14 has a network interface built by ADT Technology. 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 DC:EE:14:00:00:00 to DC:EE:14:FF:FF:FF.

OUI prefix: DC:EE:14
Hyphen form: DC-EE-14
MAC range: DC:EE:14:00:00:00 – DC:EE:14:FF:FF:FF
Addresses in block: 16,777,216
Organization: ADT Technology
Address: Room 325, 3rd Floor, Building F, Xinmao Science and Technology Park, Huayuan Industrial Zone Tianjin Tianjin CN 300384
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.

2024-02-15Assigned to "ADT Technology"
archived source →
2026-07-17Assigned to "ADT Technology"

Nearby in the registry

The prefixes assigned immediately before and after DC:EE:14:

FAQ

Which company owns MAC address prefix DC:EE:14?: MAC address prefix DC:EE:14 is registered to ADT Technology in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:EE:14 has a network interface built by ADT Technology.
What is the OUI DC:EE:14?: DC:EE:14 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ADT Technology. It covers every address from DC:EE:14:00:00:00 to DC:EE:14:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-EE-14.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:EE:14:00:00:00 that is DC:EE:14 — 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 ADT Technology located?: ADT Technology is listed at Room 325, 3rd Floor, Building F, Xinmao Science and Technology Park, Huayuan Industrial Zone Tianjin Tianjin CN 300384 in the IEEE OUI registry entry for DC:EE:14. This is the address the organization registered with the IEEE, which may differ from its current operating address.