Which company owns MAC address prefix 64:2D:B7?

MAC address prefix 64:2D:B7 is registered to SEUNGIL ELECTRONICS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:2D:B7 has a network interface built by SEUNGIL ELECTRONICS.

What is the OUI 64:2D:B7?

64:2D:B7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SEUNGIL ELECTRONICS. It covers every address from 64:2D:B7:00:00:00 to 64:2D:B7:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-2D-B7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 64:2D:B7:00:00:00 that is 64:2D:B7 — 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 SEUNGIL ELECTRONICS located?

SEUNGIL ELECTRONICS is listed at #16-8, Dodang-dong Buchon Gyuonggi-do KR 420-801 in the IEEE OUI registry entry for 64:2D:B7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SEUNGIL ELECTRONICS

MAC address prefix 64:2D:B7 is registered to SEUNGIL ELECTRONICS in the IEEE OUI registry. Any device whose MAC address begins with 64:2D:B7 has a network interface built by SEUNGIL ELECTRONICS. 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 64:2D:B7:00:00:00 to 64:2D:B7:FF:FF:FF.

OUI prefix: 64:2D:B7
Hyphen form: 64-2D-B7
MAC range: 64:2D:B7:00:00:00 – 64:2D:B7:FF:FF:FF
Addresses in block: 16,777,216
Organization: SEUNGIL ELECTRONICS
Address: #16-8, Dodang-dong Buchon Gyuonggi-do KR 420-801
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 "SEUNGIL ELECTRONICS"
archived source →
2026-07-17Assigned to "SEUNGIL ELECTRONICS"

Nearby in the registry

The prefixes assigned immediately before and after 64:2D:B7:

FAQ

Which company owns MAC address prefix 64:2D:B7?: MAC address prefix 64:2D:B7 is registered to SEUNGIL ELECTRONICS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:2D:B7 has a network interface built by SEUNGIL ELECTRONICS.
What is the OUI 64:2D:B7?: 64:2D:B7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SEUNGIL ELECTRONICS. It covers every address from 64:2D:B7:00:00:00 to 64:2D:B7:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-2D-B7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 64:2D:B7:00:00:00 that is 64:2D:B7 — 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 SEUNGIL ELECTRONICS located?: SEUNGIL ELECTRONICS is listed at #16-8, Dodang-dong Buchon Gyuonggi-do KR 420-801 in the IEEE OUI registry entry for 64:2D:B7. This is the address the organization registered with the IEEE, which may differ from its current operating address.