Which company owns MAC address prefix 9C:1F:CA?

MAC address prefix 9C:1F:CA is registered to Hangzhou AlmightyDigit Technology Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 9C:1F:CA has a network interface built by Hangzhou AlmightyDigit Technology Co., Ltd.

What is the OUI 9C:1F:CA?

9C:1F:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hangzhou AlmightyDigit Technology Co., Ltd. It covers every address from 9C:1F:CA:00:00:00 to 9C:1F:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 9C-1F-CA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 9C:1F:CA:00:00:00 that is 9C:1F:CA — 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 Hangzhou AlmightyDigit Technology Co., Ltd located?

Hangzhou AlmightyDigit Technology Co., Ltd is listed at Room A0041, 10 / F, building 1, Haizhi center, Cangqian street, Yuhang District Hangzhou Zhejiang CN 310000 in the IEEE OUI registry entry for 9C:1F:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hangzhou AlmightyDigit Technology Co., Ltd

MAC address prefix 9C:1F:CA is registered to Hangzhou AlmightyDigit Technology Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 9C:1F:CA has a network interface built by Hangzhou AlmightyDigit 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 9C:1F:CA:00:00:00 to 9C:1F:CA:FF:FF:FF.

OUI prefix: 9C:1F:CA
Hyphen form: 9C-1F-CA
MAC range: 9C:1F:CA:00:00:00 – 9C:1F:CA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hangzhou AlmightyDigit Technology Co., Ltd
Address: Room A0041, 10 / F, building 1, Haizhi center, Cangqian street, Yuhang District Hangzhou Zhejiang CN 310000
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 (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "Hangzhou AlmightyDigit Technology Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 9C:1F:CA:

FAQ

Which company owns MAC address prefix 9C:1F:CA?: MAC address prefix 9C:1F:CA is registered to Hangzhou AlmightyDigit Technology Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 9C:1F:CA has a network interface built by Hangzhou AlmightyDigit Technology Co., Ltd.
What is the OUI 9C:1F:CA?: 9C:1F:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hangzhou AlmightyDigit Technology Co., Ltd. It covers every address from 9C:1F:CA:00:00:00 to 9C:1F:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 9C-1F-CA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 9C:1F:CA:00:00:00 that is 9C:1F:CA — 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 Hangzhou AlmightyDigit Technology Co., Ltd located?: Hangzhou AlmightyDigit Technology Co., Ltd is listed at Room A0041, 10 / F, building 1, Haizhi center, Cangqian street, Yuhang District Hangzhou Zhejiang CN 310000 in the IEEE OUI registry entry for 9C:1F:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.