Which company owns MAC address prefix 08:B2:A3?

MAC address prefix 08:B2:A3 is registered to Cynny Italia S.r.L. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:B2:A3 has a network interface built by Cynny Italia S.r.L..

What is the OUI 08:B2:A3?

08:B2:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cynny Italia S.r.L.. It covers every address from 08:B2:A3:00:00:00 to 08:B2:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-B2-A3.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 08:B2:A3:00:00:00 that is 08:B2:A3 — 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 Cynny Italia S.r.L. located?

Cynny Italia S.r.L. is listed at Via delle Mantellate, 8 Firenze FI IT 59021 in the IEEE OUI registry entry for 08:B2:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Cynny Italia S.r.L.

MAC address prefix 08:B2:A3 is registered to Cynny Italia S.r.L. in the IEEE OUI registry. Any device whose MAC address begins with 08:B2:A3 has a network interface built by Cynny Italia 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 08:B2:A3:00:00:00 to 08:B2:A3:FF:FF:FF.

OUI prefix: 08:B2:A3
Hyphen form: 08-B2-A3
MAC range: 08:B2:A3:00:00:00 – 08:B2:A3:FF:FF:FF
Addresses in block: 16,777,216
Organization: Cynny Italia S.r.L.
Address: Via delle Mantellate, 8 Firenze FI IT 59021
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 "Cynny Italia S.r.L."
archived source →
2026-07-17Assigned to "Cynny Italia S.r.L."

Nearby in the registry

The prefixes assigned immediately before and after 08:B2:A3:

FAQ

Which company owns MAC address prefix 08:B2:A3?: MAC address prefix 08:B2:A3 is registered to Cynny Italia S.r.L. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:B2:A3 has a network interface built by Cynny Italia S.r.L..
What is the OUI 08:B2:A3?: 08:B2:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cynny Italia S.r.L.. It covers every address from 08:B2:A3:00:00:00 to 08:B2:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-B2-A3.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 08:B2:A3:00:00:00 that is 08:B2:A3 — 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 Cynny Italia S.r.L. located?: Cynny Italia S.r.L. is listed at Via delle Mantellate, 8 Firenze FI IT 59021 in the IEEE OUI registry entry for 08:B2:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.