Which company owns MAC address prefix 44:68:AB?

MAC address prefix 44:68:AB is registered to JUIN COMPANY, LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:68:AB has a network interface built by JUIN COMPANY, LIMITED.

What is the OUI 44:68:AB?

44:68:AB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to JUIN COMPANY, LIMITED. It covers every address from 44:68:AB:00:00:00 to 44:68:AB:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-68-AB.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 44:68:AB:00:00:00 that is 44:68:AB — 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 JUIN COMPANY, LIMITED located?

JUIN COMPANY, LIMITED is listed at 2FL, 1075-1, Wonpyeong-Dong Gumi City Gyeongsangbuk-Do KR 730-010 in the IEEE OUI registry entry for 44:68:AB. This is the address the organization registered with the IEEE, which may differ from its current operating address.

JUIN COMPANY, LIMITED

MAC address prefix 44:68:AB is registered to JUIN COMPANY, LIMITED in the IEEE OUI registry. Any device whose MAC address begins with 44:68:AB has a network interface built by JUIN COMPANY, LIMITED. 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 44:68:AB:00:00:00 to 44:68:AB:FF:FF:FF.

OUI prefix: 44:68:AB
Hyphen form: 44-68-AB
MAC range: 44:68:AB:00:00:00 – 44:68:AB:FF:FF:FF
Addresses in block: 16,777,216
Organization: JUIN COMPANY, LIMITED
Address: 2FL, 1075-1, Wonpyeong-Dong Gumi City Gyeongsangbuk-Do KR 730-010
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 "JUIN COMPANY, LIMITED"
archived source →
2026-07-17Assigned to "JUIN COMPANY, LIMITED"

Nearby in the registry

The prefixes assigned immediately before and after 44:68:AB:

FAQ

Which company owns MAC address prefix 44:68:AB?: MAC address prefix 44:68:AB is registered to JUIN COMPANY, LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:68:AB has a network interface built by JUIN COMPANY, LIMITED.
What is the OUI 44:68:AB?: 44:68:AB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to JUIN COMPANY, LIMITED. It covers every address from 44:68:AB:00:00:00 to 44:68:AB:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-68-AB.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 44:68:AB:00:00:00 that is 44:68:AB — 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 JUIN COMPANY, LIMITED located?: JUIN COMPANY, LIMITED is listed at 2FL, 1075-1, Wonpyeong-Dong Gumi City Gyeongsangbuk-Do KR 730-010 in the IEEE OUI registry entry for 44:68:AB. This is the address the organization registered with the IEEE, which may differ from its current operating address.