Which company owns MAC address prefix D8:14:D6?

MAC address prefix D8:14:D6 is registered to SURE SYSTEM Co Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:14:D6 has a network interface built by SURE SYSTEM Co Ltd.

What is the OUI D8:14:D6?

D8:14:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SURE SYSTEM Co Ltd. It covers every address from D8:14:D6:00:00:00 to D8:14:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-14-D6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:14:D6:00:00:00 that is D8:14:D6 — 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 SURE SYSTEM Co Ltd located?

SURE SYSTEM Co Ltd is listed at Bakurou-machi 4-7-5 Cyuou-ku Osaka JP 541-0059 in the IEEE OUI registry entry for D8:14:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SURE SYSTEM Co Ltd

MAC address prefix D8:14:D6 is registered to SURE SYSTEM Co Ltd in the IEEE OUI registry. Any device whose MAC address begins with D8:14:D6 has a network interface built by SURE SYSTEM 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 D8:14:D6:00:00:00 to D8:14:D6:FF:FF:FF.

OUI prefix: D8:14:D6
Hyphen form: D8-14-D6
MAC range: D8:14:D6:00:00:00 – D8:14:D6:FF:FF:FF
Addresses in block: 16,777,216
Organization: SURE SYSTEM Co Ltd
Address: Bakurou-machi 4-7-5 Cyuou-ku Osaka JP 541-0059
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.

2016-07-29Assigned to "SURE SYSTEM Co Ltd"
archived source →
2026-07-17Assigned to "SURE SYSTEM Co Ltd"

Nearby in the registry

The prefixes assigned immediately before and after D8:14:D6:

FAQ

Which company owns MAC address prefix D8:14:D6?: MAC address prefix D8:14:D6 is registered to SURE SYSTEM Co Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:14:D6 has a network interface built by SURE SYSTEM Co Ltd.
What is the OUI D8:14:D6?: D8:14:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SURE SYSTEM Co Ltd. It covers every address from D8:14:D6:00:00:00 to D8:14:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-14-D6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:14:D6:00:00:00 that is D8:14:D6 — 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 SURE SYSTEM Co Ltd located?: SURE SYSTEM Co Ltd is listed at Bakurou-machi 4-7-5 Cyuou-ku Osaka JP 541-0059 in the IEEE OUI registry entry for D8:14:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.