Which company owns MAC address prefix 44:A6:E5?

MAC address prefix 44:A6:E5 is registered to THINKING TECHNOLOGY CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:A6:E5 has a network interface built by THINKING TECHNOLOGY CO.,LTD.

What is the OUI 44:A6:E5?

44:A6:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to THINKING TECHNOLOGY CO.,LTD. It covers every address from 44:A6:E5:00:00:00 to 44:A6:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-A6-E5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 44:A6:E5:00:00:00 that is 44:A6:E5 — 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 THINKING TECHNOLOGY CO.,LTD located?

THINKING TECHNOLOGY CO.,LTD is listed at The 6th Floor,Gate No. 3 of Huaqiang Logistics Building Nanshan, Shenzhen Guangdong CN 518055 in the IEEE OUI registry entry for 44:A6:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

THINKING TECHNOLOGY CO.,LTD

MAC address prefix 44:A6:E5 is registered to THINKING TECHNOLOGY CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 44:A6:E5 has a network interface built by THINKING TECHNOLOGY 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 44:A6:E5:00:00:00 to 44:A6:E5:FF:FF:FF.

OUI prefix: 44:A6:E5
Hyphen form: 44-A6-E5
MAC range: 44:A6:E5:00:00:00 – 44:A6:E5:FF:FF:FF
Addresses in block: 16,777,216
Organization: THINKING TECHNOLOGY CO.,LTD
Address: The 6th Floor,Gate No. 3 of Huaqiang Logistics Building Nanshan, Shenzhen Guangdong CN 518055
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 "THINKING TECHNOLOGY CO.,LTD"
archived source →
2026-07-17Assigned to "THINKING TECHNOLOGY CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after 44:A6:E5:

FAQ

Which company owns MAC address prefix 44:A6:E5?: MAC address prefix 44:A6:E5 is registered to THINKING TECHNOLOGY CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:A6:E5 has a network interface built by THINKING TECHNOLOGY CO.,LTD.
What is the OUI 44:A6:E5?: 44:A6:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to THINKING TECHNOLOGY CO.,LTD. It covers every address from 44:A6:E5:00:00:00 to 44:A6:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-A6-E5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 44:A6:E5:00:00:00 that is 44:A6:E5 — 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 THINKING TECHNOLOGY CO.,LTD located?: THINKING TECHNOLOGY CO.,LTD is listed at The 6th Floor,Gate No. 3 of Huaqiang Logistics Building Nanshan, Shenzhen Guangdong CN 518055 in the IEEE OUI registry entry for 44:A6:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.