Which company owns MAC address prefix C4:9A:89?

MAC address prefix C4:9A:89 is registered to Suzhou K-Hiragawa Electronic Technology Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:9A:89 has a network interface built by Suzhou K-Hiragawa Electronic Technology Co.,Ltd.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C4:9A:89:00:00:00 that is C4:9A:89 — 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.

Suzhou K-Hiragawa Electronic Technology Co.,Ltd

MAC address prefix C4:9A:89 is registered to Suzhou K-Hiragawa Electronic Technology Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with C4:9A:89 has a network interface built by Suzhou K-Hiragawa Electronic 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 C4:9A:89:00:00:00 to C4:9A:89:FF:FF:FF.

OUI prefix: C4:9A:89
Hyphen form: C4-9A-89
MAC range: C4:9A:89:00:00:00 – C4:9A:89:FF:FF:FF
Addresses in block: 16,777,216
Organization: Suzhou K-Hiragawa Electronic Technology Co.,Ltd
Address: No.1 Zhipu Road, Qiandeng Town Suzhou Jiangsu CN 215341
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.

2025-08-23Assigned to "Suzhou K-Hiragawa Electronic Technology Co.,Ltd"
archived source →
2026-07-17Assigned to "Suzhou K-Hiragawa Electronic Technology Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after C4:9A:89:

FAQ

Which company owns MAC address prefix C4:9A:89?: MAC address prefix C4:9A:89 is registered to Suzhou K-Hiragawa Electronic Technology Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:9A:89 has a network interface built by Suzhou K-Hiragawa Electronic Technology Co.,Ltd.
What is the OUI C4:9A:89?: C4:9A:89 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Suzhou K-Hiragawa Electronic Technology Co.,Ltd. It covers every address from C4:9A:89:00:00:00 to C4:9A:89:FF:FF:FF, or 16,777,216 addresses in total. It is also written C4-9A-89.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C4:9A:89:00:00:00 that is C4:9A:89 — 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 Suzhou K-Hiragawa Electronic Technology Co.,Ltd located?: Suzhou K-Hiragawa Electronic Technology Co.,Ltd is listed at No.1 Zhipu Road, Qiandeng Town Suzhou Jiangsu CN 215341 in the IEEE OUI registry entry for C4:9A:89. This is the address the organization registered with the IEEE, which may differ from its current operating address.