Which company owns MAC address prefix E4:46:BD?

MAC address prefix E4:46:BD is registered to C&C TECHNIC TAIWAN CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E4:46:BD has a network interface built by C&C TECHNIC TAIWAN CO., LTD..

What is the OUI E4:46:BD?

E4:46:BD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to C&C TECHNIC TAIWAN CO., LTD.. It covers every address from E4:46:BD:00:00:00 to E4:46:BD:FF:FF:FF, or 16,777,216 addresses in total. It is also written E4-46-BD.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E4:46:BD:00:00:00 that is E4:46:BD — 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 C&C TECHNIC TAIWAN CO., LTD. located?

C&C TECHNIC TAIWAN CO., LTD. is listed at ROOM6 13F, NO.2,Jian 8th ROAD Taipei Chungho City, TW 23511 in the IEEE OUI registry entry for E4:46:BD. This is the address the organization registered with the IEEE, which may differ from its current operating address.

C&C TECHNIC TAIWAN CO., LTD.

MAC address prefix E4:46:BD is registered to C&C TECHNIC TAIWAN CO., LTD. in the IEEE OUI registry. Any device whose MAC address begins with E4:46:BD has a network interface built by C&C TECHNIC TAIWAN 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 E4:46:BD:00:00:00 to E4:46:BD:FF:FF:FF.

OUI prefix: E4:46:BD
Hyphen form: E4-46-BD
MAC range: E4:46:BD:00:00:00 – E4:46:BD:FF:FF:FF
Addresses in block: 16,777,216
Organization: C&C TECHNIC TAIWAN CO., LTD.
Address: ROOM6 13F, NO.2,Jian 8th ROAD Taipei Chungho City, TW 23511
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 "C&C TECHNIC TAIWAN CO., LTD."
archived source →
2026-07-17Assigned to "C&C TECHNIC TAIWAN CO., LTD."

Nearby in the registry

The prefixes assigned immediately before and after E4:46:BD:

FAQ

Which company owns MAC address prefix E4:46:BD?: MAC address prefix E4:46:BD is registered to C&C TECHNIC TAIWAN CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E4:46:BD has a network interface built by C&C TECHNIC TAIWAN CO., LTD..
What is the OUI E4:46:BD?: E4:46:BD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to C&C TECHNIC TAIWAN CO., LTD.. It covers every address from E4:46:BD:00:00:00 to E4:46:BD:FF:FF:FF, or 16,777,216 addresses in total. It is also written E4-46-BD.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E4:46:BD:00:00:00 that is E4:46:BD — 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 C&C TECHNIC TAIWAN CO., LTD. located?: C&C TECHNIC TAIWAN CO., LTD. is listed at ROOM6 13F, NO.2,Jian 8th ROAD Taipei Chungho City, TW 23511 in the IEEE OUI registry entry for E4:46:BD. This is the address the organization registered with the IEEE, which may differ from its current operating address.