Which company owns MAC address prefix E4:30:22?

MAC address prefix E4:30:22 is registered to Hanwha Vision VietNam in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E4:30:22 has a network interface built by Hanwha Vision VietNam.

What is the OUI E4:30:22?

E4:30:22 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hanwha Vision VietNam. It covers every address from E4:30:22:00:00:00 to E4:30:22:FF:FF:FF, or 16,777,216 addresses in total. It is also written E4-30-22.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E4:30:22:00:00:00 that is E4:30:22 — 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 Hanwha Vision VietNam located?

Hanwha Vision VietNam is listed at Plot O-2, Que Vo industrial park (Expanded area), Nam Son Commune, Bac Ninh City Bac Ninh Province VN 000 in the IEEE OUI registry entry for E4:30:22. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hanwha Vision VietNam

MAC address prefix E4:30:22 is registered to Hanwha Vision VietNam in the IEEE OUI registry. Any device whose MAC address begins with E4:30:22 has a network interface built by Hanwha Vision VietNam. 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 E4:30:22:00:00:00 to E4:30:22:FF:FF:FF.

OUI prefix: E4:30:22
Hyphen form: E4-30-22
MAC range: E4:30:22:00:00:00 – E4:30:22:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hanwha Vision VietNam
Address: Plot O-2, Que Vo industrial park (Expanded area), Nam Son Commune, Bac Ninh City Bac Ninh Province VN 000
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 (3)

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

2018-12-21Assigned to "Hanwha Techwin Security Vietnam"
archived source →
2024-07-02Renamed from "Hanwha Techwin Security Vietnam" to "Hanwha Vision VietNam"
archived source →
2026-07-17Assigned to "Hanwha Vision VietNam"

Nearby in the registry

The prefixes assigned immediately before and after E4:30:22:

FAQ

Which company owns MAC address prefix E4:30:22?: MAC address prefix E4:30:22 is registered to Hanwha Vision VietNam in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E4:30:22 has a network interface built by Hanwha Vision VietNam.
What is the OUI E4:30:22?: E4:30:22 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hanwha Vision VietNam. It covers every address from E4:30:22:00:00:00 to E4:30:22:FF:FF:FF, or 16,777,216 addresses in total. It is also written E4-30-22.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E4:30:22:00:00:00 that is E4:30:22 — 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 Hanwha Vision VietNam located?: Hanwha Vision VietNam is listed at Plot O-2, Que Vo industrial park (Expanded area), Nam Son Commune, Bac Ninh City Bac Ninh Province VN 000 in the IEEE OUI registry entry for E4:30:22. This is the address the organization registered with the IEEE, which may differ from its current operating address.