Which company owns MAC address prefix C8:BC:E5?

MAC address prefix C8:BC:E5 is registered to Sense Things Japan INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:BC:E5 has a network interface built by Sense Things Japan INC..

What is the OUI C8:BC:E5?

C8:BC:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sense Things Japan INC.. It covers every address from C8:BC:E5:00:00:00 to C8:BC:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-BC-E5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:BC:E5:00:00:00 that is C8:BC: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 Sense Things Japan INC. located?

Sense Things Japan INC. is listed at 3-5-7 Kawaramachi,Chuo-ku Osaka JP 541-0048 in the IEEE OUI registry entry for C8:BC:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Sense Things Japan INC.

MAC address prefix C8:BC:E5 is registered to Sense Things Japan INC. in the IEEE OUI registry. Any device whose MAC address begins with C8:BC:E5 has a network interface built by Sense Things Japan INC.. 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 C8:BC:E5:00:00:00 to C8:BC:E5:FF:FF:FF.

OUI prefix: C8:BC:E5
Hyphen form: C8-BC-E5
MAC range: C8:BC:E5:00:00:00 – C8:BC:E5:FF:FF:FF
Addresses in block: 16,777,216
Organization: Sense Things Japan INC.
Address: 3-5-7 Kawaramachi,Chuo-ku Osaka JP 541-0048
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.

2020-03-21Assigned to "Sense Things Japan INC."
archived source →
2026-07-17Assigned to "Sense Things Japan INC."

Nearby in the registry

The prefixes assigned immediately before and after C8:BC:E5:

FAQ

Which company owns MAC address prefix C8:BC:E5?: MAC address prefix C8:BC:E5 is registered to Sense Things Japan INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:BC:E5 has a network interface built by Sense Things Japan INC..
What is the OUI C8:BC:E5?: C8:BC:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sense Things Japan INC.. It covers every address from C8:BC:E5:00:00:00 to C8:BC:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-BC-E5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:BC:E5:00:00:00 that is C8:BC: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 Sense Things Japan INC. located?: Sense Things Japan INC. is listed at 3-5-7 Kawaramachi,Chuo-ku Osaka JP 541-0048 in the IEEE OUI registry entry for C8:BC:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.