Which company owns MAC address prefix 1C:1C:FD?

MAC address prefix 1C:1C:FD is registered to Dalian Hi-Think Computer Technology, Corp in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 1C:1C:FD has a network interface built by Dalian Hi-Think Computer Technology, Corp.

What is the OUI 1C:1C:FD?

1C:1C:FD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dalian Hi-Think Computer Technology, Corp. It covers every address from 1C:1C:FD:00:00:00 to 1C:1C:FD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 1C-1C-FD.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 1C:1C:FD:00:00:00 that is 1C:1C:FD — 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 Dalian Hi-Think Computer Technology, Corp located?

Dalian Hi-Think Computer Technology, Corp is listed at Hi-Think Software Building,No.6 Hi-Tech Street, Qixianling Industrial Base, Hi-Tech Zone, Dalian, China Dalian LiaoNing CN 116023 in the IEEE OUI registry entry for 1C:1C:FD. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Dalian Hi-Think Computer Technology, Corp

MAC address prefix 1C:1C:FD is registered to Dalian Hi-Think Computer Technology, Corp in the IEEE OUI registry. Any device whose MAC address begins with 1C:1C:FD has a network interface built by Dalian Hi-Think Computer Technology, Corp. 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 1C:1C:FD:00:00:00 to 1C:1C:FD:FF:FF:FF.

OUI prefix: 1C:1C:FD
Hyphen form: 1C-1C-FD
MAC range: 1C:1C:FD:00:00:00 – 1C:1C:FD:FF:FF:FF
Addresses in block: 16,777,216
Organization: Dalian Hi-Think Computer Technology, Corp
Address: Hi-Think Software Building,No.6 Hi-Tech Street, Qixianling Industrial Base, Hi-Tech Zone, Dalian, China Dalian LiaoNing CN 116023
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 "Dalian Hi-Think Computer Technology, Corp"
archived source →
2026-07-17Assigned to "Dalian Hi-Think Computer Technology, Corp"

Nearby in the registry

The prefixes assigned immediately before and after 1C:1C:FD:

FAQ

Which company owns MAC address prefix 1C:1C:FD?: MAC address prefix 1C:1C:FD is registered to Dalian Hi-Think Computer Technology, Corp in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 1C:1C:FD has a network interface built by Dalian Hi-Think Computer Technology, Corp.
What is the OUI 1C:1C:FD?: 1C:1C:FD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dalian Hi-Think Computer Technology, Corp. It covers every address from 1C:1C:FD:00:00:00 to 1C:1C:FD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 1C-1C-FD.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 1C:1C:FD:00:00:00 that is 1C:1C:FD — 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 Dalian Hi-Think Computer Technology, Corp located?: Dalian Hi-Think Computer Technology, Corp is listed at Hi-Think Software Building,No.6 Hi-Tech Street, Qixianling Industrial Base, Hi-Tech Zone, Dalian, China Dalian LiaoNing CN 116023 in the IEEE OUI registry entry for 1C:1C:FD. This is the address the organization registered with the IEEE, which may differ from its current operating address.