Which company owns MAC address prefix 5C:C4:1D?

MAC address prefix 5C:C4:1D is registered to Stone Devices Sdn. Bhd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 5C:C4:1D has a network interface built by Stone Devices Sdn. Bhd..

What is the OUI 5C:C4:1D?

5C:C4:1D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Stone Devices Sdn. Bhd.. It covers every address from 5C:C4:1D:00:00:00 to 5C:C4:1D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 5C-C4-1D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 5C:C4:1D:00:00:00 that is 5C:C4:1D — 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 Stone Devices Sdn. Bhd. located?

Stone Devices Sdn. Bhd. is listed at NO 25, JALAN I-PARK SAC 4, TAMAN PERINDUSTRIAN I-PARK SAC SENAI JOHOR MY 81400 in the IEEE OUI registry entry for 5C:C4:1D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Stone Devices Sdn. Bhd.

MAC address prefix 5C:C4:1D is registered to Stone Devices Sdn. Bhd. in the IEEE OUI registry. Any device whose MAC address begins with 5C:C4:1D has a network interface built by Stone Devices Sdn. Bhd.. 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 5C:C4:1D:00:00:00 to 5C:C4:1D:FF:FF:FF.

OUI prefix: 5C:C4:1D
Hyphen form: 5C-C4-1D
MAC range: 5C:C4:1D:00:00:00 – 5C:C4:1D:FF:FF:FF
Addresses in block: 16,777,216
Organization: Stone Devices Sdn. Bhd.
Address: NO 25, JALAN I-PARK SAC 4, TAMAN PERINDUSTRIAN I-PARK SAC SENAI JOHOR MY 81400
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.

2026-01-08Assigned to "Stone Devices Sdn. Bhd."
archived source →
2026-07-17Assigned to "Stone Devices Sdn. Bhd."

Nearby in the registry

The prefixes assigned immediately before and after 5C:C4:1D:

FAQ

Which company owns MAC address prefix 5C:C4:1D?: MAC address prefix 5C:C4:1D is registered to Stone Devices Sdn. Bhd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 5C:C4:1D has a network interface built by Stone Devices Sdn. Bhd..
What is the OUI 5C:C4:1D?: 5C:C4:1D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Stone Devices Sdn. Bhd.. It covers every address from 5C:C4:1D:00:00:00 to 5C:C4:1D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 5C-C4-1D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 5C:C4:1D:00:00:00 that is 5C:C4:1D — 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 Stone Devices Sdn. Bhd. located?: Stone Devices Sdn. Bhd. is listed at NO 25, JALAN I-PARK SAC 4, TAMAN PERINDUSTRIAN I-PARK SAC SENAI JOHOR MY 81400 in the IEEE OUI registry entry for 5C:C4:1D. This is the address the organization registered with the IEEE, which may differ from its current operating address.