Which company owns MAC address prefix 50:B8:88?

MAC address prefix 50:B8:88 is registered to wi2be Tecnologia S/A in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:B8:88 has a network interface built by wi2be Tecnologia S/A.

What is the OUI 50:B8:88?

50:B8:88 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to wi2be Tecnologia S/A. It covers every address from 50:B8:88:00:00:00 to 50:B8:88:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-B8-88.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 50:B8:88:00:00:00 that is 50:B8:88 — 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 wi2be Tecnologia S/A located?

wi2be Tecnologia S/A is listed at Rua Manoel Valdomiro de Macedo, 2285 Curitiba Parana BR 81170-150 in the IEEE OUI registry entry for 50:B8:88. This is the address the organization registered with the IEEE, which may differ from its current operating address.

wi2be Tecnologia S/A

MAC address prefix 50:B8:88 is registered to wi2be Tecnologia S/A in the IEEE OUI registry. Any device whose MAC address begins with 50:B8:88 has a network interface built by wi2be Tecnologia S/A. 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 50:B8:88:00:00:00 to 50:B8:88:FF:FF:FF.

OUI prefix: 50:B8:88
Hyphen form: 50-B8-88
MAC range: 50:B8:88:00:00:00 – 50:B8:88:FF:FF:FF
Addresses in block: 16,777,216
Organization: wi2be Tecnologia S/A
Address: Rua Manoel Valdomiro de Macedo, 2285 Curitiba Parana BR 81170-150
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 "wi2be Tecnologia S/A"
archived source →
2026-07-17Assigned to "wi2be Tecnologia S/A"

Nearby in the registry

The prefixes assigned immediately before and after 50:B8:88:

FAQ

Which company owns MAC address prefix 50:B8:88?: MAC address prefix 50:B8:88 is registered to wi2be Tecnologia S/A in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:B8:88 has a network interface built by wi2be Tecnologia S/A.
What is the OUI 50:B8:88?: 50:B8:88 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to wi2be Tecnologia S/A. It covers every address from 50:B8:88:00:00:00 to 50:B8:88:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-B8-88.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 50:B8:88:00:00:00 that is 50:B8:88 — 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 wi2be Tecnologia S/A located?: wi2be Tecnologia S/A is listed at Rua Manoel Valdomiro de Macedo, 2285 Curitiba Parana BR 81170-150 in the IEEE OUI registry entry for 50:B8:88. This is the address the organization registered with the IEEE, which may differ from its current operating address.