Which company owns MAC address prefix 24:EC:D6?

MAC address prefix 24:EC:D6 is registered to CSG Science & Technology Co.,Ltd.Hefei in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 24:EC:D6 has a network interface built by CSG Science & Technology Co.,Ltd.Hefei.

What is the OUI 24:EC:D6?

24:EC:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CSG Science & Technology Co.,Ltd.Hefei. It covers every address from 24:EC:D6:00:00:00 to 24:EC:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 24-EC-D6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 24:EC:D6:00:00:00 that is 24:EC:D6 — 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 CSG Science & Technology Co.,Ltd.Hefei located?

CSG Science & Technology Co.,Ltd.Hefei is listed at No.612-1,Huangshan Road,Gaoxin District Hefei Anhui Province CN 230088 in the IEEE OUI registry entry for 24:EC:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

CSG Science & Technology Co.,Ltd.Hefei

MAC address prefix 24:EC:D6 is registered to CSG Science & Technology Co.,Ltd.Hefei in the IEEE OUI registry. Any device whose MAC address begins with 24:EC:D6 has a network interface built by CSG Science & Technology Co.,Ltd.Hefei. 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 24:EC:D6:00:00:00 to 24:EC:D6:FF:FF:FF.

OUI prefix: 24:EC:D6
Hyphen form: 24-EC-D6
MAC range: 24:EC:D6:00:00:00 – 24:EC:D6:FF:FF:FF
Addresses in block: 16,777,216
Organization: CSG Science & Technology Co.,Ltd.Hefei
Address: No.612-1,Huangshan Road,Gaoxin District Hefei Anhui Province CN 230088
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 "CSG Science & Technology Co.,Ltd.Hefei"
archived source →
2026-07-17Assigned to "CSG Science & Technology Co.,Ltd.Hefei"

Nearby in the registry

The prefixes assigned immediately before and after 24:EC:D6:

FAQ

Which company owns MAC address prefix 24:EC:D6?: MAC address prefix 24:EC:D6 is registered to CSG Science & Technology Co.,Ltd.Hefei in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 24:EC:D6 has a network interface built by CSG Science & Technology Co.,Ltd.Hefei.
What is the OUI 24:EC:D6?: 24:EC:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CSG Science & Technology Co.,Ltd.Hefei. It covers every address from 24:EC:D6:00:00:00 to 24:EC:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 24-EC-D6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 24:EC:D6:00:00:00 that is 24:EC:D6 — 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 CSG Science & Technology Co.,Ltd.Hefei located?: CSG Science & Technology Co.,Ltd.Hefei is listed at No.612-1,Huangshan Road,Gaoxin District Hefei Anhui Province CN 230088 in the IEEE OUI registry entry for 24:EC:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.