Which company owns MAC address prefix BC:26:A1?

MAC address prefix BC:26:A1 is registered to FACTORY FIVE Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with BC:26:A1 has a network interface built by FACTORY FIVE Corporation.

What is the OUI BC:26:A1?

BC:26:A1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FACTORY FIVE Corporation. It covers every address from BC:26:A1:00:00:00 to BC:26:A1:FF:FF:FF, or 16,777,216 addresses in total. It is also written BC-26-A1.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in BC:26:A1:00:00:00 that is BC:26:A1 — 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 FACTORY FIVE Corporation located?

FACTORY FIVE Corporation is listed at 3-391-1, Kamikitadai, Higashiyamato Tokyo JP 207-0023 in the IEEE OUI registry entry for BC:26:A1. This is the address the organization registered with the IEEE, which may differ from its current operating address.

FACTORY FIVE Corporation

MAC address prefix BC:26:A1 is registered to FACTORY FIVE Corporation in the IEEE OUI registry. Any device whose MAC address begins with BC:26:A1 has a network interface built by FACTORY FIVE Corporation. 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 BC:26:A1:00:00:00 to BC:26:A1:FF:FF:FF.

OUI prefix: BC:26:A1
Hyphen form: BC-26-A1
MAC range: BC:26:A1:00:00:00 – BC:26:A1:FF:FF:FF
Addresses in block: 16,777,216
Organization: FACTORY FIVE Corporation
Address: 3-391-1, Kamikitadai, Higashiyamato Tokyo JP 207-0023
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 "FACTORY FIVE Corporation"
archived source →
2026-07-17Assigned to "FACTORY FIVE Corporation"

Nearby in the registry

The prefixes assigned immediately before and after BC:26:A1:

FAQ

Which company owns MAC address prefix BC:26:A1?: MAC address prefix BC:26:A1 is registered to FACTORY FIVE Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with BC:26:A1 has a network interface built by FACTORY FIVE Corporation.
What is the OUI BC:26:A1?: BC:26:A1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FACTORY FIVE Corporation. It covers every address from BC:26:A1:00:00:00 to BC:26:A1:FF:FF:FF, or 16,777,216 addresses in total. It is also written BC-26-A1.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in BC:26:A1:00:00:00 that is BC:26:A1 — 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 FACTORY FIVE Corporation located?: FACTORY FIVE Corporation is listed at 3-391-1, Kamikitadai, Higashiyamato Tokyo JP 207-0023 in the IEEE OUI registry entry for BC:26:A1. This is the address the organization registered with the IEEE, which may differ from its current operating address.