Which company owns MAC address prefix EC:BB:AE?

MAC address prefix EC:BB:AE is registered to Digivoice Tecnologia em Eletronica Ltda in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:BB:AE has a network interface built by Digivoice Tecnologia em Eletronica Ltda.

What is the OUI EC:BB:AE?

EC:BB:AE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Digivoice Tecnologia em Eletronica Ltda. It covers every address from EC:BB:AE:00:00:00 to EC:BB:AE:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-BB-AE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:BB:AE:00:00:00 that is EC:BB:AE — 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 Digivoice Tecnologia em Eletronica Ltda located?

Digivoice Tecnologia em Eletronica Ltda is listed at Alameda Juru, 159 - Torreo Barueri São Paulo BR 06455-010 in the IEEE OUI registry entry for EC:BB:AE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Digivoice Tecnologia em Eletronica Ltda

MAC address prefix EC:BB:AE is registered to Digivoice Tecnologia em Eletronica Ltda in the IEEE OUI registry. Any device whose MAC address begins with EC:BB:AE has a network interface built by Digivoice Tecnologia em Eletronica Ltda. 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 EC:BB:AE:00:00:00 to EC:BB:AE:FF:FF:FF.

OUI prefix: EC:BB:AE
Hyphen form: EC-BB-AE
MAC range: EC:BB:AE:00:00:00 – EC:BB:AE:FF:FF:FF
Addresses in block: 16,777,216
Organization: Digivoice Tecnologia em Eletronica Ltda
Address: Alameda Juru, 159 - Torreo Barueri São Paulo BR 06455-010
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 "Digivoice Tecnologia em Eletronica Ltda"
archived source →
2026-07-17Assigned to "Digivoice Tecnologia em Eletronica Ltda"

Nearby in the registry

The prefixes assigned immediately before and after EC:BB:AE:

FAQ

Which company owns MAC address prefix EC:BB:AE?: MAC address prefix EC:BB:AE is registered to Digivoice Tecnologia em Eletronica Ltda in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:BB:AE has a network interface built by Digivoice Tecnologia em Eletronica Ltda.
What is the OUI EC:BB:AE?: EC:BB:AE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Digivoice Tecnologia em Eletronica Ltda. It covers every address from EC:BB:AE:00:00:00 to EC:BB:AE:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-BB-AE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:BB:AE:00:00:00 that is EC:BB:AE — 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 Digivoice Tecnologia em Eletronica Ltda located?: Digivoice Tecnologia em Eletronica Ltda is listed at Alameda Juru, 159 - Torreo Barueri São Paulo BR 06455-010 in the IEEE OUI registry entry for EC:BB:AE. This is the address the organization registered with the IEEE, which may differ from its current operating address.