Which company owns MAC address prefix A4:58:02?

MAC address prefix A4:58:02 is registered to SHIN-IL TECH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:58:02 has a network interface built by SHIN-IL TECH.

What is the OUI A4:58:02?

A4:58:02 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHIN-IL TECH. It covers every address from A4:58:02:00:00:00 to A4:58:02:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-58-02.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A4:58:02:00:00:00 that is A4:58:02 — 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 SHIN-IL TECH located?

SHIN-IL TECH is listed at 711 HO,DAEMYEONG BELLI ON,10, Gyeongin-ro 53ga-gil, Guro-gu Seoul KR KS013 in the IEEE OUI registry entry for A4:58:02. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SHIN-IL TECH

MAC address prefix A4:58:02 is registered to SHIN-IL TECH in the IEEE OUI registry. Any device whose MAC address begins with A4:58:02 has a network interface built by SHIN-IL TECH. 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 A4:58:02:00:00:00 to A4:58:02:FF:FF:FF.

OUI prefix: A4:58:02
Hyphen form: A4-58-02
MAC range: A4:58:02:00:00:00 – A4:58:02:FF:FF:FF
Addresses in block: 16,777,216
Organization: SHIN-IL TECH
Address: 711 HO,DAEMYEONG BELLI ON,10, Gyeongin-ro 53ga-gil, Guro-gu Seoul KR KS013
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.

2021-02-25Assigned to "SHIN-IL TECH"
archived source →
2026-07-17Assigned to "SHIN-IL TECH"

Nearby in the registry

The prefixes assigned immediately before and after A4:58:02:

FAQ

Which company owns MAC address prefix A4:58:02?: MAC address prefix A4:58:02 is registered to SHIN-IL TECH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:58:02 has a network interface built by SHIN-IL TECH.
What is the OUI A4:58:02?: A4:58:02 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHIN-IL TECH. It covers every address from A4:58:02:00:00:00 to A4:58:02:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-58-02.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A4:58:02:00:00:00 that is A4:58:02 — 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 SHIN-IL TECH located?: SHIN-IL TECH is listed at 711 HO,DAEMYEONG BELLI ON,10, Gyeongin-ro 53ga-gil, Guro-gu Seoul KR KS013 in the IEEE OUI registry entry for A4:58:02. This is the address the organization registered with the IEEE, which may differ from its current operating address.