Which company owns MAC address prefix 50:E0:99?

MAC address prefix 50:E0:99 is registered to HangZhou Atuo Future Technology Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:E0:99 has a network interface built by HangZhou Atuo Future Technology Co., Ltd.

What is the OUI 50:E0:99?

50:E0:99 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HangZhou Atuo Future Technology Co., Ltd. It covers every address from 50:E0:99:00:00:00 to 50:E0:99:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-E0-99.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 50:E0:99:00:00:00 that is 50:E0:99 — 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 HangZhou Atuo Future Technology Co., Ltd located?

HangZhou Atuo Future Technology Co., Ltd is listed at Room E505-1, 5th Floor, Unit 1, Building 10, Alibaba Digital Ecological Innovation Park, No. 1 Aicheng Street, Wuchang Street, Yuhang District HANGZHOU CN 310000 in the IEEE OUI registry entry for 50:E0:99. This is the address the organization registered with the IEEE, which may differ from its current operating address.

HangZhou Atuo Future Technology Co., Ltd

MAC address prefix 50:E0:99 is registered to HangZhou Atuo Future Technology Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 50:E0:99 has a network interface built by HangZhou Atuo Future Technology Co., Ltd. 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:E0:99:00:00:00 to 50:E0:99:FF:FF:FF.

OUI prefix: 50:E0:99
Hyphen form: 50-E0-99
MAC range: 50:E0:99:00:00:00 – 50:E0:99:FF:FF:FF
Addresses in block: 16,777,216
Organization: HangZhou Atuo Future Technology Co., Ltd
Address: Room E505-1, 5th Floor, Unit 1, Building 10, Alibaba Digital Ecological Innovation Park, No. 1 Aicheng Street, Wuchang Street, Yuhang District HANGZHOU CN 310000
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.

2024-11-20Assigned to "HangZhou Atuo Future Technology Co., Ltd"
archived source →
2026-07-17Assigned to "HangZhou Atuo Future Technology Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 50:E0:99:

FAQ

Which company owns MAC address prefix 50:E0:99?: MAC address prefix 50:E0:99 is registered to HangZhou Atuo Future Technology Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:E0:99 has a network interface built by HangZhou Atuo Future Technology Co., Ltd.
What is the OUI 50:E0:99?: 50:E0:99 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HangZhou Atuo Future Technology Co., Ltd. It covers every address from 50:E0:99:00:00:00 to 50:E0:99:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-E0-99.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 50:E0:99:00:00:00 that is 50:E0:99 — 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 HangZhou Atuo Future Technology Co., Ltd located?: HangZhou Atuo Future Technology Co., Ltd is listed at Room E505-1, 5th Floor, Unit 1, Building 10, Alibaba Digital Ecological Innovation Park, No. 1 Aicheng Street, Wuchang Street, Yuhang District HANGZHOU CN 310000 in the IEEE OUI registry entry for 50:E0:99. This is the address the organization registered with the IEEE, which may differ from its current operating address.