Which company owns MAC address prefix B4:24:E7?

MAC address prefix B4:24:E7 is registered to Codetek Technology Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B4:24:E7 has a network interface built by Codetek Technology Co.,Ltd.

What is the OUI B4:24:E7?

B4:24:E7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Codetek Technology Co.,Ltd. It covers every address from B4:24:E7:00:00:00 to B4:24:E7:FF:FF:FF, or 16,777,216 addresses in total. It is also written B4-24-E7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B4:24:E7:00:00:00 that is B4:24:E7 — 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 Codetek Technology Co.,Ltd located?

Codetek Technology Co.,Ltd is listed at 4F.-1, No.55, Dongguang Rd., East Dist., Hsinchu City TW 300 in the IEEE OUI registry entry for B4:24:E7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Codetek Technology Co.,Ltd

MAC address prefix B4:24:E7 is registered to Codetek Technology Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with B4:24:E7 has a network interface built by Codetek 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 B4:24:E7:00:00:00 to B4:24:E7:FF:FF:FF.

OUI prefix: B4:24:E7
Hyphen form: B4-24-E7
MAC range: B4:24:E7:00:00:00 – B4:24:E7:FF:FF:FF
Addresses in block: 16,777,216
Organization: Codetek Technology Co.,Ltd
Address: 4F.-1, No.55, Dongguang Rd., East Dist., Hsinchu City TW 300
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 "Codetek Technology Co.,Ltd"
archived source →
2026-07-17Assigned to "Codetek Technology Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after B4:24:E7:

FAQ

Which company owns MAC address prefix B4:24:E7?: MAC address prefix B4:24:E7 is registered to Codetek Technology Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B4:24:E7 has a network interface built by Codetek Technology Co.,Ltd.
What is the OUI B4:24:E7?: B4:24:E7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Codetek Technology Co.,Ltd. It covers every address from B4:24:E7:00:00:00 to B4:24:E7:FF:FF:FF, or 16,777,216 addresses in total. It is also written B4-24-E7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B4:24:E7:00:00:00 that is B4:24:E7 — 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 Codetek Technology Co.,Ltd located?: Codetek Technology Co.,Ltd is listed at 4F.-1, No.55, Dongguang Rd., East Dist., Hsinchu City TW 300 in the IEEE OUI registry entry for B4:24:E7. This is the address the organization registered with the IEEE, which may differ from its current operating address.