Which company owns MAC address prefix FC:DD:55?

MAC address prefix FC:DD:55 is registered to Shenzhen WeWins wireless Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:DD:55 has a network interface built by Shenzhen WeWins wireless Co.,Ltd.

What is the OUI FC:DD:55?

FC:DD:55 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen WeWins wireless Co.,Ltd. It covers every address from FC:DD:55:00:00:00 to FC:DD:55:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-DD-55.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:DD:55:00:00:00 that is FC:DD:55 — 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 Shenzhen WeWins wireless Co.,Ltd located?

Shenzhen WeWins wireless Co.,Ltd is listed at 6/F.,B Wing,Yuehai Piaza,Nanhai Road Shenzhen Guangdong CN 518000 in the IEEE OUI registry entry for FC:DD:55. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Shenzhen WeWins wireless Co.,Ltd

MAC address prefix FC:DD:55 is registered to Shenzhen WeWins wireless Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with FC:DD:55 has a network interface built by Shenzhen WeWins wireless 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 FC:DD:55:00:00:00 to FC:DD:55:FF:FF:FF.

OUI prefix: FC:DD:55
Hyphen form: FC-DD-55
MAC range: FC:DD:55:00:00:00 – FC:DD:55:FF:FF:FF
Addresses in block: 16,777,216
Organization: Shenzhen WeWins wireless Co.,Ltd
Address: 6/F.,B Wing,Yuehai Piaza,Nanhai Road Shenzhen Guangdong CN 518000
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 "Shenzhen WeWins wireless Co.,Ltd"
archived source →
2026-07-17Assigned to "Shenzhen WeWins wireless Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after FC:DD:55:

FAQ

Which company owns MAC address prefix FC:DD:55?: MAC address prefix FC:DD:55 is registered to Shenzhen WeWins wireless Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:DD:55 has a network interface built by Shenzhen WeWins wireless Co.,Ltd.
What is the OUI FC:DD:55?: FC:DD:55 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen WeWins wireless Co.,Ltd. It covers every address from FC:DD:55:00:00:00 to FC:DD:55:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-DD-55.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:DD:55:00:00:00 that is FC:DD:55 — 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 Shenzhen WeWins wireless Co.,Ltd located?: Shenzhen WeWins wireless Co.,Ltd is listed at 6/F.,B Wing,Yuehai Piaza,Nanhai Road Shenzhen Guangdong CN 518000 in the IEEE OUI registry entry for FC:DD:55. This is the address the organization registered with the IEEE, which may differ from its current operating address.