Which company owns MAC address prefix 04:5D:56?

MAC address prefix 04:5D:56 is registered to camtron industrial inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:5D:56 has a network interface built by camtron industrial inc..

What is the OUI 04:5D:56?

04:5D:56 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to camtron industrial inc.. It covers every address from 04:5D:56:00:00:00 to 04:5D:56:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-5D-56.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:5D:56:00:00:00 that is 04:5D:56 — 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 camtron industrial inc. located?

camtron industrial inc. is listed at 5F, Kuem-Ah B/D, 31-3, Karak-dong, Songpa-gu Seoul KR 138-801 in the IEEE OUI registry entry for 04:5D:56. This is the address the organization registered with the IEEE, which may differ from its current operating address.

camtron industrial inc.

MAC address prefix 04:5D:56 is registered to camtron industrial inc. in the IEEE OUI registry. Any device whose MAC address begins with 04:5D:56 has a network interface built by camtron industrial inc.. 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 04:5D:56:00:00:00 to 04:5D:56:FF:FF:FF.

OUI prefix: 04:5D:56
Hyphen form: 04-5D-56
MAC range: 04:5D:56:00:00:00 – 04:5D:56:FF:FF:FF
Addresses in block: 16,777,216
Organization: camtron industrial inc.
Address: 5F, Kuem-Ah B/D, 31-3, Karak-dong, Songpa-gu Seoul KR 138-801
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 "camtron industrial inc."
archived source →
2026-07-17Assigned to "camtron industrial inc."

Nearby in the registry

The prefixes assigned immediately before and after 04:5D:56:

FAQ

Which company owns MAC address prefix 04:5D:56?: MAC address prefix 04:5D:56 is registered to camtron industrial inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:5D:56 has a network interface built by camtron industrial inc..
What is the OUI 04:5D:56?: 04:5D:56 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to camtron industrial inc.. It covers every address from 04:5D:56:00:00:00 to 04:5D:56:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-5D-56.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:5D:56:00:00:00 that is 04:5D:56 — 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 camtron industrial inc. located?: camtron industrial inc. is listed at 5F, Kuem-Ah B/D, 31-3, Karak-dong, Songpa-gu Seoul KR 138-801 in the IEEE OUI registry entry for 04:5D:56. This is the address the organization registered with the IEEE, which may differ from its current operating address.