Which company owns MAC address prefix 10:BE:99?

MAC address prefix 10:BE:99 is registered to Netberg in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:BE:99 has a network interface built by Netberg.

What is the OUI 10:BE:99?

10:BE:99 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Netberg. It covers every address from 10:BE:99:00:00:00 to 10:BE:99:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-BE-99.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:BE:99:00:00:00 that is 10:BE:99 — 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 Netberg located?

Netberg is listed at 2F-1 No.36, Park St., Nangang District Taipei TW 11560 in the IEEE OUI registry entry for 10:BE:99. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Netberg

MAC address prefix 10:BE:99 is registered to Netberg in the IEEE OUI registry. Any device whose MAC address begins with 10:BE:99 has a network interface built by Netberg. 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 10:BE:99:00:00:00 to 10:BE:99:FF:FF:FF.

OUI prefix: 10:BE:99
Hyphen form: 10-BE-99
MAC range: 10:BE:99:00:00:00 – 10:BE:99:FF:FF:FF
Addresses in block: 16,777,216
Organization: Netberg
Address: 2F-1 No.36, Park St., Nangang District Taipei TW 11560
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 "Netberg"
archived source →
2026-07-17Assigned to "Netberg"

Nearby in the registry

The prefixes assigned immediately before and after 10:BE:99:

FAQ

Which company owns MAC address prefix 10:BE:99?: MAC address prefix 10:BE:99 is registered to Netberg in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:BE:99 has a network interface built by Netberg.
What is the OUI 10:BE:99?: 10:BE:99 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Netberg. It covers every address from 10:BE:99:00:00:00 to 10:BE:99:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-BE-99.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:BE:99:00:00:00 that is 10:BE:99 — 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 Netberg located?: Netberg is listed at 2F-1 No.36, Park St., Nangang District Taipei TW 11560 in the IEEE OUI registry entry for 10:BE:99. This is the address the organization registered with the IEEE, which may differ from its current operating address.