Which company owns MAC address prefix 60:21:03?

MAC address prefix 60:21:03 is registered to I4VINE, INC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:21:03 has a network interface built by I4VINE, INC.

What is the OUI 60:21:03?

60:21:03 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to I4VINE, INC. It covers every address from 60:21:03:00:00:00 to 60:21:03:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-21-03.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 60:21:03:00:00:00 that is 60:21:03 — 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 I4VINE, INC located?

I4VINE, INC is listed at TLI Building 6th floor, 195 Seongnam-si Gyeonggi-do KR 462-100 in the IEEE OUI registry entry for 60:21:03. This is the address the organization registered with the IEEE, which may differ from its current operating address.

I4VINE, INC

MAC address prefix 60:21:03 is registered to I4VINE, INC in the IEEE OUI registry. Any device whose MAC address begins with 60:21:03 has a network interface built by I4VINE, 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 60:21:03:00:00:00 to 60:21:03:FF:FF:FF.

OUI prefix: 60:21:03
Hyphen form: 60-21-03
MAC range: 60:21:03:00:00:00 – 60:21:03:FF:FF:FF
Addresses in block: 16,777,216
Organization: I4VINE, INC
Address: TLI Building 6th floor, 195 Seongnam-si Gyeonggi-do KR 462-100
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.

2016-07-29Assigned to "STCUBE.INC"
archived source →
2017-09-08Renamed from "STCUBE.INC" to "I4VINE, INC"
archived source →
2026-07-17Assigned to "I4VINE, INC"

Nearby in the registry

The prefixes assigned immediately before and after 60:21:03:

FAQ

Which company owns MAC address prefix 60:21:03?: MAC address prefix 60:21:03 is registered to I4VINE, INC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 60:21:03 has a network interface built by I4VINE, INC.
What is the OUI 60:21:03?: 60:21:03 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to I4VINE, INC. It covers every address from 60:21:03:00:00:00 to 60:21:03:FF:FF:FF, or 16,777,216 addresses in total. It is also written 60-21-03.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 60:21:03:00:00:00 that is 60:21:03 — 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 I4VINE, INC located?: I4VINE, INC is listed at TLI Building 6th floor, 195 Seongnam-si Gyeonggi-do KR 462-100 in the IEEE OUI registry entry for 60:21:03. This is the address the organization registered with the IEEE, which may differ from its current operating address.