Which company owns MAC address prefix 64:F9:47?

MAC address prefix 64:F9:47 is registered to Senscomm Semiconductor Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:F9:47 has a network interface built by Senscomm Semiconductor Co., Ltd..

What is the OUI 64:F9:47?

64:F9:47 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Senscomm Semiconductor Co., Ltd.. It covers every address from 64:F9:47:00:00:00 to 64:F9:47:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-F9-47.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 64:F9:47:00:00:00 that is 64:F9:47 — 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 Senscomm Semiconductor Co., Ltd. located?

Senscomm Semiconductor Co., Ltd. is listed at Room 303-309, 3rd Floor International Building, NO.2 Suzhou Avenue West Suzhou Jiangsu CN 215000 in the IEEE OUI registry entry for 64:F9:47. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Senscomm Semiconductor Co., Ltd.

MAC address prefix 64:F9:47 is registered to Senscomm Semiconductor Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 64:F9:47 has a network interface built by Senscomm Semiconductor 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 64:F9:47:00:00:00 to 64:F9:47:FF:FF:FF.

OUI prefix: 64:F9:47
Hyphen form: 64-F9-47
MAC range: 64:F9:47:00:00:00 – 64:F9:47:FF:FF:FF
Addresses in block: 16,777,216
Organization: Senscomm Semiconductor Co., Ltd.
Address: Room 303-309, 3rd Floor International Building, NO.2 Suzhou Avenue West Suzhou Jiangsu CN 215000
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.

2020-08-05Assigned to "Senscomm Semiconductor Co., Ltd."
archived source →
2026-07-17Assigned to "Senscomm Semiconductor Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 64:F9:47:

FAQ

Which company owns MAC address prefix 64:F9:47?: MAC address prefix 64:F9:47 is registered to Senscomm Semiconductor Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:F9:47 has a network interface built by Senscomm Semiconductor Co., Ltd..
What is the OUI 64:F9:47?: 64:F9:47 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Senscomm Semiconductor Co., Ltd.. It covers every address from 64:F9:47:00:00:00 to 64:F9:47:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-F9-47.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 64:F9:47:00:00:00 that is 64:F9:47 — 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 Senscomm Semiconductor Co., Ltd. located?: Senscomm Semiconductor Co., Ltd. is listed at Room 303-309, 3rd Floor International Building, NO.2 Suzhou Avenue West Suzhou Jiangsu CN 215000 in the IEEE OUI registry entry for 64:F9:47. This is the address the organization registered with the IEEE, which may differ from its current operating address.