Which company owns MAC address prefix A0:BF:50?

MAC address prefix A0:BF:50 is registered to S.C. ADD-PRODUCTION S.R.L. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A0:BF:50 has a network interface built by S.C. ADD-PRODUCTION S.R.L..

What is the OUI A0:BF:50?

A0:BF:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to S.C. ADD-PRODUCTION S.R.L.. It covers every address from A0:BF:50:00:00:00 to A0:BF:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written A0-BF-50.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A0:BF:50:00:00:00 that is A0:BF:50 — 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 S.C. ADD-PRODUCTION S.R.L. located?

S.C. ADD-PRODUCTION S.R.L. is listed at 36, Dragomirna str. Chisinau MD MD-2008 in the IEEE OUI registry entry for A0:BF:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.

S.C. ADD-PRODUCTION S.R.L.

MAC address prefix A0:BF:50 is registered to S.C. ADD-PRODUCTION S.R.L. in the IEEE OUI registry. Any device whose MAC address begins with A0:BF:50 has a network interface built by S.C. ADD-PRODUCTION S.R.L.. 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 A0:BF:50:00:00:00 to A0:BF:50:FF:FF:FF.

OUI prefix: A0:BF:50
Hyphen form: A0-BF-50
MAC range: A0:BF:50:00:00:00 – A0:BF:50:FF:FF:FF
Addresses in block: 16,777,216
Organization: S.C. ADD-PRODUCTION S.R.L.
Address: 36, Dragomirna str. Chisinau MD MD-2008
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 "S.C. ADD-PRODUCTION S.R.L."
archived source →
2026-07-17Assigned to "S.C. ADD-PRODUCTION S.R.L."

Nearby in the registry

The prefixes assigned immediately before and after A0:BF:50:

FAQ

Which company owns MAC address prefix A0:BF:50?: MAC address prefix A0:BF:50 is registered to S.C. ADD-PRODUCTION S.R.L. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A0:BF:50 has a network interface built by S.C. ADD-PRODUCTION S.R.L..
What is the OUI A0:BF:50?: A0:BF:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to S.C. ADD-PRODUCTION S.R.L.. It covers every address from A0:BF:50:00:00:00 to A0:BF:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written A0-BF-50.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A0:BF:50:00:00:00 that is A0:BF:50 — 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 S.C. ADD-PRODUCTION S.R.L. located?: S.C. ADD-PRODUCTION S.R.L. is listed at 36, Dragomirna str. Chisinau MD MD-2008 in the IEEE OUI registry entry for A0:BF:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.