Which company owns MAC address prefix 74:4B:E9?

MAC address prefix 74:4B:E9 is registered to EXPLORER HYPERTECH CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 74:4B:E9 has a network interface built by EXPLORER HYPERTECH CO.,LTD.

What is the OUI 74:4B:E9?

74:4B:E9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to EXPLORER HYPERTECH CO.,LTD. It covers every address from 74:4B:E9:00:00:00 to 74:4B:E9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 74-4B-E9.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 74:4B:E9:00:00:00 that is 74:4B:E9 — 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 EXPLORER HYPERTECH CO.,LTD located?

EXPLORER HYPERTECH CO.,LTD is listed at 7F.-9,NO.112,Xinmin St New Taipei City TW 235 in the IEEE OUI registry entry for 74:4B:E9. This is the address the organization registered with the IEEE, which may differ from its current operating address.

EXPLORER HYPERTECH CO.,LTD

MAC address prefix 74:4B:E9 is registered to EXPLORER HYPERTECH CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 74:4B:E9 has a network interface built by EXPLORER HYPERTECH CO.,LTD. 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 74:4B:E9:00:00:00 to 74:4B:E9:FF:FF:FF.

OUI prefix: 74:4B:E9
Hyphen form: 74-4B-E9
MAC range: 74:4B:E9:00:00:00 – 74:4B:E9:FF:FF:FF
Addresses in block: 16,777,216
Organization: EXPLORER HYPERTECH CO.,LTD
Address: 7F.-9,NO.112,Xinmin St New Taipei City TW 235
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 "EXPLORER HYPERTECH CO.,LTD"
archived source →
2026-07-17Assigned to "EXPLORER HYPERTECH CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after 74:4B:E9:

FAQ

Which company owns MAC address prefix 74:4B:E9?: MAC address prefix 74:4B:E9 is registered to EXPLORER HYPERTECH CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 74:4B:E9 has a network interface built by EXPLORER HYPERTECH CO.,LTD.
What is the OUI 74:4B:E9?: 74:4B:E9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to EXPLORER HYPERTECH CO.,LTD. It covers every address from 74:4B:E9:00:00:00 to 74:4B:E9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 74-4B-E9.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 74:4B:E9:00:00:00 that is 74:4B:E9 — 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 EXPLORER HYPERTECH CO.,LTD located?: EXPLORER HYPERTECH CO.,LTD is listed at 7F.-9,NO.112,Xinmin St New Taipei City TW 235 in the IEEE OUI registry entry for 74:4B:E9. This is the address the organization registered with the IEEE, which may differ from its current operating address.