Which company owns MAC address prefix 14:1A:AA?

MAC address prefix 14:1A:AA is registered to Metal Work SpA in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:1A:AA has a network interface built by Metal Work SpA.

What is the OUI 14:1A:AA?

14:1A:AA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Metal Work SpA. It covers every address from 14:1A:AA:00:00:00 to 14:1A:AA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-1A-AA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 14:1A:AA:00:00:00 that is 14:1A:AA — 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 Metal Work SpA located?

Metal Work SpA is listed at Via Segni 5-7-9 25062 Concesio Brescia Italy IT 25062 in the IEEE OUI registry entry for 14:1A:AA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Metal Work SpA

MAC address prefix 14:1A:AA is registered to Metal Work SpA in the IEEE OUI registry. Any device whose MAC address begins with 14:1A:AA has a network interface built by Metal Work SpA. 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 14:1A:AA:00:00:00 to 14:1A:AA:FF:FF:FF.

OUI prefix: 14:1A:AA
Hyphen form: 14-1A-AA
MAC range: 14:1A:AA:00:00:00 – 14:1A:AA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Metal Work SpA
Address: Via Segni 5-7-9 25062 Concesio Brescia Italy IT 25062
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.

2023-07-11Assigned to "Metal Work SpA"
archived source →
2026-07-17Assigned to "Metal Work SpA"

Nearby in the registry

The prefixes assigned immediately before and after 14:1A:AA:

FAQ

Which company owns MAC address prefix 14:1A:AA?: MAC address prefix 14:1A:AA is registered to Metal Work SpA in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:1A:AA has a network interface built by Metal Work SpA.
What is the OUI 14:1A:AA?: 14:1A:AA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Metal Work SpA. It covers every address from 14:1A:AA:00:00:00 to 14:1A:AA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-1A-AA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 14:1A:AA:00:00:00 that is 14:1A:AA — 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 Metal Work SpA located?: Metal Work SpA is listed at Via Segni 5-7-9 25062 Concesio Brescia Italy IT 25062 in the IEEE OUI registry entry for 14:1A:AA. This is the address the organization registered with the IEEE, which may differ from its current operating address.