Which company owns MAC address prefix 04:36:B8?

MAC address prefix 04:36:B8 is registered to I&C Technology in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:36:B8 has a network interface built by I&C Technology.

What is the OUI 04:36:B8?

04:36:B8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to I&C Technology. It covers every address from 04:36:B8:00:00:00 to 04:36:B8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-36-B8.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:36:B8:00:00:00 that is 04:36:B8 — 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 I&C Technology located?

I&C Technology is listed at I&C Building, 24, Pangyo-ro 255beon-gil, Bundang-gu Seongnam-si Gyeonggi-do KR 13486 in the IEEE OUI registry entry for 04:36:B8. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does I&C Technology own?

I&C Technology holds 2 OUI prefixes in the IEEE registry, of which 04:36:B8 is one. A device made by I&C Technology could carry a MAC address from any of them.

I&C Technology

MAC address prefix 04:36:B8 is registered to I&C Technology in the IEEE OUI registry. Any device whose MAC address begins with 04:36:B8 has a network interface built by I&C Technology. 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 04:36:B8:00:00:00 to 04:36:B8:FF:FF:FF.

OUI prefix: 04:36:B8
Hyphen form: 04-36-B8
MAC range: 04:36:B8:00:00:00 – 04:36:B8:FF:FF:FF
Addresses in block: 16,777,216
Organization: I&C Technology
Address: I&C Building, 24, Pangyo-ro 255beon-gil, Bundang-gu Seongnam-si Gyeonggi-do KR 13486
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.

Other prefixes from I&C Technology

I&C Technology holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

84:72:07

Assignment history (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "I&C Technology"

Nearby in the registry

The prefixes assigned immediately before and after 04:36:B8:

FAQ

Which company owns MAC address prefix 04:36:B8?: MAC address prefix 04:36:B8 is registered to I&C Technology in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:36:B8 has a network interface built by I&C Technology.
What is the OUI 04:36:B8?: 04:36:B8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to I&C Technology. It covers every address from 04:36:B8:00:00:00 to 04:36:B8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-36-B8.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:36:B8:00:00:00 that is 04:36:B8 — 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 I&C Technology located?: I&C Technology is listed at I&C Building, 24, Pangyo-ro 255beon-gil, Bundang-gu Seongnam-si Gyeonggi-do KR 13486 in the IEEE OUI registry entry for 04:36:B8. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does I&C Technology own?: I&C Technology holds 2 OUI prefixes in the IEEE registry, of which 04:36:B8 is one. A device made by I&C Technology could carry a MAC address from any of them.